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Yoichiro Ito, M.D.

Publications


Principal Investigator thumbnail image

Yoichiro Ito
Senior Investigator

P: +1 301 496 1210
F: +1 301 402 0013
itoy@nhlbi.nih.gov


Full Publications Listing

Determination of Major Components and Fingerprint Analysis of Flaveria bidentis (L.) Kuntze.
Xie Q, Ding L, Wei Y, Ito Y.
J Chromatogr Sci. 2013 Mar 20.
[Text Abstract on PubMed]

Separation of chlorogenic acid and concentration of trace caffeic acid from natural products by pH-zone-refining countercurrent chromatography.
Lu Y, Dong G, Gu Y, Ito Y, Wei Y.
J Sep Sci. 2013 Jul ;36(13):2210-5.
[Text Abstract on PubMed]

ORGANIC-HIGH IONIC STRENGTH AQUEOUS SOLVENT SYSTEMS FOR SPIRAL COUNTER-CURRENT CHROMATOGRAPHY: GRAPHIC OPTIMIZATION OF PARTITION COEFFICIENT.
Zeng Y, Liu G, Ma Y, Chen X, Ito Y.
J Liq Chromatogr Relat Technol. 2013 Jan 10;36(4):504-512.
[Text Abstract on PubMed]

pH-zone-refining counter-current chromatography: origin, mechanism, procedure and applications.
Ito Y.
J Chromatogr A. 2013 Jan 4;1271(1):71-85.
[Text Abstract on PubMed]

Vortex Counter-Current Chromatography: Performance of a New Preparative Column.
Ito Y, Clary R, Witten JJ, Zeng Y.
Chromatographia. 2012 Oct 1;75(19-20):1091-1097.
[Text Abstract on PubMed]

Preparation of two novel monobrominated 2-(2',4'-dihydroxybenzoyl)-3,4,5,6-tetrachlorobenzoic acids and their separation from crude synthetic mixtures using vortex counter-current chromatography.
Weisz A, Witten JJ, Zeng Y, Mazzola EP, Ito Y.
J Chromatogr A. 2012 May 11;1237:106-14.
[Text Abstract on PubMed]

Sequential determination of anionic-type detergents by complexation with methylene blue using dual high speed counter-current chromatography.
Kitazume E, Koikawa S, Hui L, Sannohe S, Yang Y, Maki Y, Ito Y.
J Chromatogr A. 2012 May 4;1236:148-51.
[Text Abstract on PubMed]

Separation of nucleobases and their derivatives with organic-high ionic strength aqueous phase systems by spiral high-speed counter-current chromatography.
Shibusawa Y, Yanagida A, Ogihara A, Ma Y, Chen X, Ito Y.
J Chromatogr B Analyt Technol Biomed Life Sci. 2012 Apr 1;891-892:94-7.
[Text Abstract on PubMed]

Application of counter-current chromatography as a new pretreatment method for the determination of polycyclic aromatic hydrocarbons in environmental water.
Cao X, Yang C, Pei H, Li X, Xu X, Ito Y.
J Sep Sci. 2012 Feb ;35(4):596-601.
[Text Abstract on PubMed]

Preparative isolation and purification of alkaloids from Picrasma quassiodes (D. Don) Benn. by high-speed countercurrent chromatography.
Zhao W, He J, Zhang Y, Ito Y, Su Q, Sun W.
J Liq Chromatogr Relat Technol. 2012 01 ;35(11):1597-1606.
[Text Abstract on PubMed]

(6R,9S)-6"-(4"-hydroxybenzoyl)-roseoside, a new megastigmane derivative from Ouratea polyantha and its effect on hepatic glucose-6-phosphatase.
Bermúdez J, Rodríguez M, Hasegawa M, González-Mujica F, Duque S, Ito Y.
Nat Prod Commun. 2012 Aug ;7(8):973-6.
[Text Abstract on PubMed]

PREPARATIVE ISOLATION AND PURIFICATION OF THREE GLYCINE-CONJUGATED CHOLIC ACIDS FROM PULVIS FELLIS SUIS BY HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY COUPLED WITH ELSD DETECTION.
He J, Li J, Sun W, Zhang T, Ito Y.
J Liq Chromatogr Relat Technol. 2012 01 ;35(5):737-746.
[Text Abstract on PubMed]

Evaluation of the performance of protein separation in figure-8 centrifugal counter-current chromatography.
Yang Y, Gu D, Aisa HA, Ito Y.
J Chromatogr B Analyt Technol Biomed Life Sci. 2011 Dec 15;879(32):3802-5.
[Text Abstract on PubMed]

Organic high ionic strength aqueous two-phase solvent system series for separation of ultra-polar compounds by spiral high-speed counter-current chromatography.
Zeng Y, Liu G, Ma Y, Chen X, Ito Y.
J Chromatogr A. 2011 Dec 2;1218(48):8715-7.
[Text Abstract on PubMed]

ISOLATION OF FIVE BIOACTIVE COMPONENTS FROM EUPATORIUM ADENOPHORUM SPRENG USING STEPWISE ELUTION BY HIGH-SPEED COUNTER-CURRENT CHROMATOGRAPHY.
Wei Y, Zhang K, Zhang G, Ito Y.
J Liq Chromatogr Relat Technol. 2011 Dec 1;34(20):2505-2515.
[Text Abstract on PubMed]

Preparative separation of 1,3,6-pyrenetrisulfonic acid trisodium salt from the color additive D&C Green No. 8 (pyranine) by pH-zone-refining counter-current chromatography.
Weisz A, Mazzola EP, Ito Y.
J Chromatogr A. 2011 Nov 11;1218(45):8249-54.
[Text Abstract on PubMed]

Vortex counter-current chromatography.
Ito Y, Ma Z, Clary R, Powell J, Knight M, Finn TM.
J Chromatogr A. 2011 Sep 9;1218(36):6165-72.
[Text Abstract on PubMed]

Studies on the effect of column angle in figure-8 centrifugal counter-current chromatography.
Yang Y, Gu D, Aisa HA, Ito Y.
J Chromatogr A. 2011 Sep 9;1218(36):6128-34.
[Text Abstract on PubMed]

Performance comparison of three types of high-speed counter-current chromatographs for the separation of components of hydrophilic and hydrophobic color additives.
Weisz A, Ito Y.
J Chromatogr A. 2011 Sep 9;1218(36):6156-64.
[Text Abstract on PubMed]

Studies on the performance of different coiled column configurations for compact type-I countercurrent chromatography.
Yang Y, Gu D, Aisa HA, Ito Y.
J Sep Sci. 2011 May;34(10):1205-11.
[Text Abstract on PubMed]

Isolation and purification of series bioactive components from Hypericum perforatum L. by counter-current chromatography.
Cao X, Wang Q, Li Y, Bai G, Ren H, Xu C, Ito Y.
J Chromatogr B Analyt Technol Biomed Life Sci. 2011 Mar 1;879(7-8):480-8.
[Text Abstract on PubMed]

Preparative isolation of alkaloids from Corydalis bungeana Turcz. by high-speed counter-current chromatography using stepwise elution.
Niu L, Xie Z, Cai T, Wu P, Xue P, Chen X, Wu Z, Ito Y, Li F, Yang F.
J Sep Sci. 2011 May ;34(9):987-94.
[Text Abstract on PubMed]

Semi-Preparative Isolation and Purification of Three Tauro-Conjugated Cholic Acids from Pulvis Fellis Suis by HSCCC Coupled with ELSD Detection.
He J, Zhang Y, Ito Y, Sun W.
Chromatographia. 2011 01 ;73(3-4):361-365.
[Text Abstract on PubMed]

PREPARATIVE ISOLATION AND PURIFICATION OF CHEMICAL CONSTITUENTS OF BELAMCANDA BY MPLC, HSCCC AND PREP-HPLC.
Wang X, Liang Y, Peng C, Xie H, Pan M, Zhang T, Ito Y.
J Liq Chromatogr Relat Technol. 2011 01 ;34(4):241-257.
[Text Abstract on PubMed]

Preparative separation of high-purity cordycepin from Cordyceps militaris(L.) Link by high-speed countercurrent chromatography.
Zhu L, Liang Y, Lao D, Zhang T, Ito Y.
J Liq Chromatogr Relat Technol. 2011 01 ;37(7):491-499.
[Text Abstract on PubMed]

Development and evaluation of a spiral tube column for counter-current chromatography.
Cao X, Pei H, Huo L, Hu G, Ito Y.
J Sep Sci. 2011 Oct ;34(19):2611-7.
[Text Abstract on PubMed]

PREPARATIVE ISOLATION AND PURIFICATION OF FOUR FLAVONOIDS FROM DAPHNE GENKWA SIEB. ET ZUCC. BY HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY.
Xie H, Liang Y, Ito Y, Wang X, Chen R, He J, Li H, Zhang T.
J Liq Chromatogr Relat Technol. 2011 01 ;34(19):2360-2372.
[Text Abstract on PubMed]

Simultaneous Determination of Hydrochlorothiazide and Reserpine in Human Urine by LC with a Simple Pre-Treatment.
Li H, He J, Liu Q, Huo Z, Liang S, Liang Y, Ito Y.
Chromatographia. 2011 Jan 1;73(1-2):171-175.
[Text Abstract on PubMed]

PREPARATIVE ISOLATION AND PURIFICATION OF FIVE FLAVONOIDS FROM POGOSTEMON CABLIN BENTH BY HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY AND PREPARATIVE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY.
Li K, Zhang H, Xie H, Liang Y, Wang X, Ito Y.
J Liq Chromatogr Relat Technol. 2011 Jan 1;34(15):1617-1629.
[Text Abstract on PubMed]

Evaluation on the performance of four different column models mounted on the compact type-I coil planet centrifuge.
Yang Y, Gu D, Aisa HA, Ito Y.
J Chromatogr A. 2010 Nov 26;1217(48):7612-5.
[Text Abstract on PubMed]

Purification of optical imaging ligand-Cybesin by high-speed counter-current chromatography.
Ma Z, Ma Y, Sun X, Ye Y, Shen B, Chen X, Ito Y.
J Chromatogr B Analyt Technol Biomed Life Sci. 2010 Nov 1;878(29):3039-43.
[Text Abstract on PubMed]

Enantioseparation of lomefloxacin hydrochloride by high-speed counter-current chromatography using sulfated-β-cyclodextrin as a chiral selector.
Wei Y, Du S, Ito Y.
J Chromatogr B Analyt Technol Biomed Life Sci. 2010 Oct 15;878(28):2937-41.
[Text Abstract on PubMed]

Spiral column configuration for protein separation by high-speed countercurrent chromatography.
Ito Y.
Chem Eng Process. 2010 Jul;49(7):782-792.
[Text Abstract on PubMed]

Counter-current chromatographic separation of nucleic acid constituents with a hydrophilic solvent system.
Shibusawa Y, Shoji A, Suzuka C, Yanagida A, Ito Y.
J Chromatogr A. 2010 May 14;1217(20):3457-60.
[Text Abstract on PubMed]

Studies on the effect of column angle in centrifugal helix counter-current chromatography.
Yang Y, Gu D, Aisa HA, Ito Y.
J Chromatogr A. 2010 Apr 2;1217(14):2117-22.
[Text Abstract on PubMed]

Separation of alpha-cyclohexylmandelic acid enantiomers using biphasic chiral recognition high-speed counter-current chromatography.
Tong S, Yan J, Guan YX, Fu Y, Ito Y.
J Chromatogr A. 2010 Apr 30;1217(18):3044-52.
[Text Abstract on PubMed]

Compact type-I coil planet centrifuge for counter-current chromatography.
Yang Y, Gu D, Liu Y, Aisa HA, Ito Y.
J Chromatogr A. 2010 Feb 19;1217(8):1313-9.
[Text Abstract on PubMed]

Separation and Purification of Flavonoids from Black Currant Leaves by High-Speed Countercurrent Chromatography and Preparative HPLC.
He D, Huang Y, Ayupbek A, Gu D, Yang Y, Aisa HA, Ito Y.
J Liq Chromatogr Relat Technol. 2010 Mar 1;33(5):615-628.
[Text Abstract on PubMed]

Centrifugal precipitation chromatography.
Ito Y, Qi L.
J. Chromatogr. B Analyt. Technol. Biomed. Life Sci. 2010 Jan 15;878(2):154-64.
[Text Abstract on PubMed]

Novel Design for Centrifugal Countercurrent Chromatography: II. Studies on Novel Geometries of Zigzag Toroidal Tubing.
Yang Y, Aisa HA, Ito Y.
J. Liq. Chromatogr. Relat. Technol. 2010 Jan;33(3):336-348.
[Text Abstract on PubMed]

Novel Design for Centrifugal Counter-Current Chromatography: III. Saw Tooth Column.
Yang Y, Aisa HA, Ito Y.
J. Liq. Chromatogr. Relat. Technol. 2010 Jan 1;33(6):846-858.
[Text Abstract on PubMed]

Novel Designs for Centrifugal Countercurrent chromatography: V. Comparative Studies on Performance of Various Column Configurations.
Yang Y, Gu D, Aisa HA, Ito Y.
J. Liq. Chromatogr. Relat. Technol. 2010 Jan;33(16):1542-1549.
[Text Abstract on PubMed]

Cysteinyl leukotriene receptor antagonists inhibit tumor metastasis by inhibiting capillary permeability.
Nozaki M, Yoshikawa M, Ishitani K, Kobayashi H, Houkin K, Imai K, Ito Y, Muraki T.
Keio J Med. 2010 01 ;59(1):10-8.
[Text Abstract on PubMed]

Preparative Isolation and Purification of Flavone C-Glycosides from the Leaves of Ficus microcarpa L. f by Medium-Pressure Liquid Chromatography, High-Speed Countercurrent Chromatography, and Preparative Liquid Chromatography.
Wang X, Liang Y, Zhu L, Xie H, Li H, He J, Pan M, Zhang T, Ito Y.
J Liq Chromatogr Relat Technol. 2010 Jan 1;33(4):462-480.
[Text Abstract on PubMed]

ISOLATION OF CAFFEIC ACID FROM EUPATORIUM ADENOPHORUM SPRENG BY HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY AND SYNTHESIS OF CAFFEIC ACID-INTERCALATED LAYERED DOUBLE HYDROXIDE.
Wei Y, Gao Y, Zhang K, Ito Y.
J Liq Chromatogr Relat Technol. 2010 Jan 1;33(6):837-845.
[Text Abstract on PubMed]

Separation and purification of triterpene saponins from roots of Radix phytolaccae by high-speed countercurrent chromatography coupled with evaporative light scattering detection.
Ma J, Chen Q, Lai D, Sun W, Zhang T, Ito Y.
J Liq Chromatogr Relat Technol. 2010 Jan 1;33(4):563-571.
[Text Abstract on PubMed]

SEPARATION OF THE MINOR FLAVONOLS FROM FLOS GOSSYPII BY HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY.
Yang Y, Zhao Y, Gu D, Ayupbek A, Huang Y, Dou J, Ito Y, Zhang T, Aisa HA.
J Liq Chromatogr Relat Technol. 2010 Jan 1;33(16):1502-1515.
[Text Abstract on PubMed]

Separation and Purification of Phenolic Acids and Myricetin from Black Currant by High Speed Countercurrent Chromatography.
He D, Gu D, Huang Y, Ayupbek A, Yang Y, Aisa HA, Ito Y.
J Liq Chromatogr Relat Technol. 2009 Dec 1;32(20):3077-3088.
[Text Abstract on PubMed]

Mathematical model of computer-programmed intermittent dual countercurrent chromatography applied to hydrostatic and hydrodynamic equilibrium systems.
Yang Y, Aisa HA, Ito Y.
J Chromatogr A. 2009 Aug 28;1216(35):6310-8.
[Text Abstract on PubMed]

Flat-twisted tubing: novel column design for spiral high-speed counter-current chromatography.
Yang Y, Aisa HA, Ito Y.
J Chromatogr A. 2009 Jul 3;1216(27):5265-71.
[Text Abstract on PubMed]

Improved spiral tube assembly for high-speed counter-current chromatography.
Ito Y, Clary R, Powell J, Knight M, Finn TM.
J Chromatogr A. 2009 May 8;1216(19):4193-200.
[Text Abstract on PubMed]

Separation of epigallocatechin and flavonoids from Hypericum perforatum L. by high-speed counter-current chromatography and preparative high-performance liquid chromatography.
Wei Y, Xie Q, Dong W, Ito Y.
J Chromatogr A. 2009 May 8;1216(19):4313-8.
[Text Abstract on PubMed]

Centrifugal precipitation chromatography, a powerful technique for the isolation of active enzymes from tea leaves (Camellia sinensis).
Baldermann S, Fleischmann P, Bolten M, Watanabe N, Winterhalter P, Ito Y.
J Chromatogr A. 2009 May 8;1216(19):4263-7.
[Text Abstract on PubMed]

Preparative separation of di- and trisulfonated components of Quinoline Yellow using affinity-ligand pH-zone-refining counter-current chromatography.
Weisz A, Mazzola EP, Ito Y.
J Chromatogr A. 2009 May 8;1216(19):4161-8.
[Text Abstract on PubMed]

Countercurrent chromatographic separation and purification of various ribonucleases using a small-scale cross-axis coil planet centrifuge with aqueous-aqueous polymer phase systems.
Shinomiya K, Kobayashi H, Motoyoshi N, Inokuchi N, Nakagomi K, Ito Y.
J Chromatogr B Analyt Technol Biomed Life Sci. 2009 Apr 1;877(10):955-60.
[Text Abstract on PubMed]

Triangular Helical Column for Centrifugal Countercurrent Chromatography.
Ito Y, Yu H.
J. Liq. Chromatogr. Relat. Technol. 2009;32(4):560-566.
[Text Abstract on PubMed]

Novel Design for Centrifugal Countercurrent Chromatography: I. Zigzag Toroidal Column.
Yang Y, Aisa HA, Ito Y.
J. Liq. Chromatogr. Relat. Technol. 2009 Jan 1;32(14):2030-2042.
[Text Abstract on PubMed]

Isolation and purification of nootkatone from the essential oil of fruits of Alpinia oxyphylla Miquel by high-speed counter-current chromatography.
Xie J, Wang S, Sun B, Ito Y.
Food Chem. 2009 Nov ;117(2):375-380.
[Text Abstract on PubMed]

PREPARATIVE SEPARATION OF AXIFOLIN-3-GLUCOSIDE, HYPEROSIDE AND AMYGDALIN FROM PLANT EXTRACTS BY HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY.
Wei Y, Xie Q, Ito Y.
J Liq Chromatogr Relat Technol. 2009 Jan 1;32(7):1010-1022.
[Text Abstract on PubMed]

Comparative Study on Separation and Purification of Isoflavones from the Seeds and Sprouts of Chickpea by HSCCC.
Lv Q, Yang Y, Zhao Y, Gu D, He D, Yili A, Ma Q, Cheng Z, Gao Y, Aisa HA, Ito Y.
J Liq Chromatogr Relat Technol. 2009 Jan 1;32(19):2879-2892.
[Text Abstract on PubMed]

Preparative isolation and purification of flavonoids from the Chinese medicinal herb Belamcanda by high-speed countercurrent chromatography.
Peng C, Liang Y, Wang X, Xie H, Zhang T, Ito Y.
J Liq Chromatogr Relat Technol. 2009 Jan 1;32(16):2451-2461.
[Text Abstract on PubMed]

Two-Step Purification of Cordycepin from Cordyceps Millitaris by High-Speed Countercurrent Chromatography.
Ju X, Sun Y, Cao X, Jiang J, Zhang T, Ito Y.
J Liq Chromatogr Relat Technol. 2009 Jan 1;32(16):2417-2423.
[Text Abstract on PubMed]

PARTITION EFFICIENCY OF NEWLY DESIGNED LOCULAR MULTILAYER COIL FOR COUNTERCURRENT CHROMATOGRAPHIC SEPARATION OF PROTEINS USING SMALL-SCALE CROSS-AXIS COIL PLANET CENTRIFUGE WITH AQUEOUS-AQUEOUS POLYMER PHASE SYSTEMS.
Shinomiya K, Ito Y.
J Liq Chromatogr Relat Technol. 2009 Jan 1;32(8):1096-1106.
[Text Abstract on PubMed]

Countercurrent Chromatographic Separation of Lipophilic Ascorbic Acid Derivatives and Extract from Kadsura Coccinea Using Hydrophobic Organic-Aqueous Two-Phase Solvent Systems.
Shinomiya K, Li H, Kitanaka S, Ito Y.
J Liq Chromatogr Relat Technol. 2009 Jan 1;32(16):2361-2371.
[Text Abstract on PubMed]

PREPARATIVE ISOLATION OF ISORHAMNETIN FROM STIGMA MAYDIS USING HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY.
Cao X, Wei Y, Ito Y.
J Liq Chromatogr Relat Technol. 2009 Jan 1;32(2):273-280.
[Text Abstract on PubMed]

ISOLATION AND PUNRIFICATION OF PSORALEN AND BERGAPTEN FROM FICUS CARICA L LEAVES BY HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY.
Chunyan C, Bo S, Ping L, Jingmei L, Ito Y.
J Liq Chromatogr Relat Technol. 2009 Jan 1;32(1):136-143.
[Text Abstract on PubMed]

Preparative purification of 4-hydroxy-1-naphthalenesulfonic acid sodium salt by high-speed counter-current chromatography.
Weisz A, Ito Y.
J Chromatogr A. 2008 Jul 11;1198-1199:232-4.
[Text Abstract on PubMed]

Stationary phase retention and preliminary application of a spiral disk assembly designed for high-speed counter-current chromatography.
Cao X, Hu G, Huo L, Zhu X, Li T, Powell J, Ito Y.
J Chromatogr A. 2008 Apr 25;1188(2):164-70.
[Text Abstract on PubMed]

Rapid determination of carbamate pesticides in food using dual counter-current chromatography directly interfaced with mass spectrometry.
Ito Y, Goto T, Yamada S, Ohno T, Matsumoto H, Oka H, Ito Y.
J Chromatogr A. 2008 Apr 11;1187(1-2):53-7.
[Text Abstract on PubMed]

Spiral Tube Assembly for High-Speed Countercurrent Chromatography: Choice of Elution Modes for Four Typical Two-Phase Solvent Systems.
Ito Y, Clary R, Powell J, Knight M, Finn TM.
J. Liq. Chromatogr. Relat. Technol. 2008 Jan 1;31(9):1346-1357.
[Text Abstract on PubMed]

A simple method to optimize the HSCCC two-phase solvent system by predicting the partition coefficient for target compound.
Han QB, Wong L, Yang NY, Song JZ, Qiao CF, Yiu H, Ito Y, Xu HX.
J Sep Sci. 2008 Apr ;31(6-7):1189-94.
[Text Abstract on PubMed]

APPLICATION OF PREPARATIVE HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY FOR SEPARATION OF ELATINE FROM DELPHINIUM SHAWURENSE.
Yang Y, Gu D, Wu H, Aisa HA, Zhang T, Ito Y.
J Liq Chromatogr Relat Technol. 2008 Jan 1;31(19):3012-3019.
[Text Abstract on PubMed]

Mixer-settler counter-current chromatography with multiple spiral disk assembly.
Ito Y, Clary R, Sharpnak F, Metger H, Powell J.
J Chromatogr A. 2007 Nov 23;1172(2):151-9.
[Text Abstract on PubMed]

Counter-current chromatographic estimation of hydrophobicity of Z-(cis) and E-(trans) enalapril and kinetics of cis/trans isomerization.
Shoji A, Yanagida A, Shindo H, Ito Y, Shibusawa Y.
J Chromatogr A. 2007 Jul 20;1157(1-2):101-7.
[Text Abstract on PubMed]

Mixer-settler counter-current chromatography with a barricaded spiral disk assembly with glass beads.
Ito Y, Qi L, Powell J, Sharpnack F, Metger H, Yost J, Cao XL, Dong YM, Huo LS, Zhu XP, Li T.
J Chromatogr A. 2007 Jun 1;1151(1-2):108-14.
[Text Abstract on PubMed]

Colony-forming cell assay for human hematopoietic progenitor cells harvested by a novel continuous-flow cell separation method.
Shiono H, Chen HM, Okada T, Ito Y.
J Chromatogr A. 2007 Jun 1;1151(1-2):153-7.
[Text Abstract on PubMed]

One-step purification of histone deacetylase from Escherichia coli cell-lysate by counter-current chromatography using aqueous two-phase system.
Shibusawa Y, Takeuchi N, Tsutsumi K, Nakano S, Yanagida A, Shindo H, Ito Y.
J Chromatogr A. 2007 Jun 1;1151(1-2):158-63.
[Text Abstract on PubMed]

Preparative isolation and identification of tyrosinase inhibitors from the seeds of Garcinia kola by high-speed counter-current chromatography.
Okunji C, Komarnytsky S, Fear G, Poulev A, Ribnicky DM, Awachie PI, Ito Y, Raskin I.
J Chromatogr A. 2007 Jun 1;1151(1-2):45-50.
[Text Abstract on PubMed]

Isolation of high-purity casticin from Artemisia annua L. by high-speed counter-current chromatography.
Han X, Ma X, Zhang T, Zhang Y, Liu Q, Ito Y.
J Chromatogr A. 2007 Jun 1;1151(1-2):180-2.
[Text Abstract on PubMed]

Comprehensive separation of secondary metabolites in natural products by high-speed counter-current chromatography using a three-phase solvent system.
Yanagida A, Yamakawa Y, Noji R, Oda A, Shindo H, Ito Y, Shibusawa Y.
J Chromatogr A. 2007 Jun 1;1151(1-2):74-81.
[Text Abstract on PubMed]

New small-scale cross-axis coil planet centrifuge. Partition efficiency and application to purification of bullfrog ribonuclease.
Shinomiya K, Kobayashi H, Inokuchi N, Kobayashi K, Oshima H, Kitanaka S, Yanagidaira K, Sasaki H, Muto M, Okano M, Ito Y.
J Chromatogr A. 2007 Jun 1;1151(1-2):91-8.
[Text Abstract on PubMed]

Immunoaffinity centrifugal precipitation chromatography.
Qi L, Ito Y.
J Chromatogr A. 2007 Jun 1;1151(1-2):121-5.
[Text Abstract on PubMed]

Preparative separation of isomeric and stereoisomeric dicarboxylic acids by pH-zone-refining counter-current chromatography.
Weisz A, Idina A, Ben-Ari J, Karni M, Mandelbaum A, Ito Y.
J Chromatogr A. 2007 Jun 1;1151(1-2):82-90.
[Text Abstract on PubMed]

Aqueous-aqueous two-phase systems composed of low molecular weight of polyethylene glycols and dextrans for counter-current chromatographic purification of proteins.
Shibusawa Y, Takeuchi N, Sugawara K, Yanagida A, Shindo H, Ito Y.
J Chromatogr B Analyt Technol Biomed Life Sci. 2006 Dec 5;844(2):217-22.
[Text Abstract on PubMed]

Three-phase solvent systems for comprehensive separation of a wide variety of compounds by high-speed counter-current chromatography.
Shibusawa Y, Yamakawa Y, Noji R, Yanagida A, Shindo H, Ito Y.
J Chromatogr A. 2006 Nov 10;1133(1-2):119-25.
[Text Abstract on PubMed]

Purification of coenzyme Q10 from fermentation extract: high-speed counter-current chromatography versus silica gel column chromatography.
Cao XL, Xu YT, Zhang GM, Xie SM, Dong YM, Ito Y.
J Chromatogr A. 2006 Sep 15;1127(1-2):92-6.
[Text Abstract on PubMed]

Preparative isolation of imperatorin, oxypeucedanin and isoimperatorin from traditional Chinese herb "bai zhi"Angelica dahurica (Fisch. ex Hoffm) Benth. et Hook using multidimensional high-speed counter-current chromatography.
Wei Y, Ito Y.
J Chromatogr A. 2006 May 19;1115(1-2):112-7.
[Text Abstract on PubMed]

Analytical separation of tea catechins and food-related polyphenols by high-speed counter-current chromatography.
Yanagida A, Shoji A, Shibusawa Y, Shindo H, Tagashira M, Ikeda M, Ito Y.
J Chromatogr A. 2006 Apr 21;1112(1-2):195-201.
[Text Abstract on PubMed]

Application of dual counter-current chromatography for rapid sample preparation of N-methylcarbamate pesticides in vegetable oil and citrus fruit.
Ito Y, Goto T, Yamada S, Matsumoto H, Oka H, Takahashi N, Nakazawa H, Nagase H, Ito Y.
J Chromatogr A. 2006 Mar 3;1108(1):20-5.
[Text Abstract on PubMed]

New small-scale cross-axis coil planet centrifuge. The design of the apparatus and its application to counter-current chromatographic separation of proteins with aqueous-aqueous polymer phase systems.
Shinomiya K, Yanagidaira K, Ito Y.
J Chromatogr A. 2006 Feb 3;1104(1-2):245-55.
[Text Abstract on PubMed]

Preparative fractionation of protein, RNA, and plasmid DNA using centrifugal precipitation chromatography with tubular dialysis membrane inside a convoluted tubing as separation channel.
Tomanee P, Hsu JT, Ito Y.
Biotechnol Prog. 2006 01 ;22(2):532-7.
[Text Abstract on PubMed]

Isolation of a novel flavanone 6-glucoside from the flowers of Carthamus tinctorium (Honghua) by high-speed counter-current chromatography.
Zhao M, Ito Y, Tu P.
J Chromatogr A. 2005 Oct 7;1090(1-2):193-6.
[Text Abstract on PubMed]

Preparative isolation and purification of rupestonic acid from the Chinese medicinal plant Artemisia rupestris L. by high-speed counter-current chromatography.
Ma Y, Aisha HA, Liao L, Aibai S, Zhang T, Ito Y.
J Chromatogr A. 2005 May 27;1076(1-2):198-201.
[Text Abstract on PubMed]

Application of preparative high-speed counter-current chromatography for separation of methyl gallate from Acer truncatum Bunge.
Ma X, Wu L, Ito Y, Tian W.
J Chromatogr A. 2005 May 27;1076(1-2):212-5.
[Text Abstract on PubMed]

Semi-industrial isolation of salicin and amygdalin from plant extracts using slow rotary counter-current chromatography.
Du Q, Jerz G, Ha Y, Li L, Xu Y, Zhang Q, Zheng Q, Winterhalter P, Ito Y.
J Chromatogr A. 2005 May 13;1074(1-2):43-6.
[Text Abstract on PubMed]

Isolation of quercetin-3-O-L-rhamnoside from Acer truncatum Bunge by high-speed counter-current chromatography.
Ma X, Tian W, Wu L, Cao X, Ito Y.
J Chromatogr A. 2005 Apr 8;1070(1-2):211-4.
[Text Abstract on PubMed]

Golden rules and pitfalls in selecting optimum conditions for high-speed counter-current chromatography.
Ito Y.
J Chromatogr A. 2005 Feb 18;1065(2):145-68.
[Text Abstract on PubMed]

Fractionation of protein, RNA, and plasmid DNA in centrifugal precipitation chromatography using cationic surfactant CTAB containing inorganic salts NaCl and NH(4)Cl.
Tomanee P, Hsu JT, Ito Y.
Biotechnol Bioeng. 2004 Oct 5;88(1):52-9.
[Text Abstract on PubMed]

Separation of flavonoids from the seeds of Vernonia anthelmintica Willd by high-speed counter-current chromatography.
Tian G, Zhang U, Zhang T, Yang F, Ito Y.
J Chromatogr A. 2004 Sep 17;1049(1-2):219-22.
[Text Abstract on PubMed]

Purification of glucosyltransferase from cell-lysate of Streptococcus mutans by counter-current chromatography using aqueous polymer two-phase system.
Yanagida A, Isozaki M, Shibusawa Y, Shindo H, Ito Y.
J Chromatogr B Analyt Technol Biomed Life Sci. 2004 Jun 5;805(1):155-60.
[Text Abstract on PubMed]

Purification of the precursor for the automated radiosynthesis of [18F]FCWAY by counter-current chromatography.
Ma Y, Lang L, Kiesewetter DO, Vuong BK, Channing M, Ito Y, Eckelman WC.
J Chromatogr A. 2004 Apr 23;1034(1-2):149-53.
[Text Abstract on PubMed]

Preparative isolation of osthol and xanthotoxol from Common Cnidium Fruit (Chinese traditional herb) using stepwise elution by high-speed counter-current chromatography.
Wei Y, Zhang T, Ito Y.
J Chromatogr A. 2004 Apr 16;1033(2):373-7.
[Text Abstract on PubMed]

Effect of Coriolis force on counter-current chromatographic separation by centrifugal partition chromatography.
Ikehata J, Shinomiya K, Kobayashi K, Ohshima H, Kitanaka S, Ito Y.
J Chromatogr A. 2004 Feb 6;1025(2):169-75.
[Text Abstract on PubMed]

Preparative separation of proteins using centrifugal precipitation chromatography based on solubility in ammonium sulfate solution.
Yu H, Ito Y.
Prep Biochem Biotechnol. 2004 Feb ;34(1):1-12.
[Text Abstract on PubMed]

Purification of alcohol dehydrogenase from bovine liver crude extract by dye-ligand affinity counter-current chromatography.
Shibusawa Y, Fujiwara T, Shindo H, Ito Y.
J Chromatogr B Analyt Technol Biomed Life Sci. 2004 Jan 25;799(2):239-44.
[Text Abstract on PubMed]

Preparative isolation and purification of isoflavan and pterocarpan glycosides from Astragalus membranaceus Bge. var. mongholicus (Bge.) Hsiao by high-speed counter-current chromatography.
Ma X, Tu P, Chen Y, Zhang T, Wei Y, Ito Y.
J Chromatogr A. 2004 Jan 16;1023(2):311-5.
[Text Abstract on PubMed]

Supercritical fluid extraction of grape seed oil and subsequent separation of free fatty acids by high-speed counter-current chromatography.
Cao X, Ito Y.
J Chromatogr A. 2003 Dec 22;1021(1-2):117-24.
[Text Abstract on PubMed]

Improved spiral disk assembly for high-speed counter-current chromatography.
Ito Y, Yang F, Fitze P, Powell J, Ide D.
J Chromatogr A. 2003 Oct 31;1017(1-2):71-81.
[Text Abstract on PubMed]

Preparative separation of rhein from Chinese traditional herb by repeated high-speed counter-current chromatography.
Wei Y, Zhang T, Ito Y.
J Chromatogr A. 2003 Oct 31;1017(1-2):125-30.
[Text Abstract on PubMed]

Purification of single-strand DNA binding protein from an Escherichia coli lysate using counter-current chromatography, partition and precipitation.
Shibusawa Y, Ino Y, Kinebuchi T, Shimizu M, Shindo H, Ito Y.
J Chromatogr B Analyt Technol Biomed Life Sci. 2003 Aug 15;793(2):275-9.
[Text Abstract on PubMed]

Protein separation by nonsynchronous coil planet centrifuge with aqueous-aqueous polymer phase systems.
Shinomiya K, Kabasawa Y, Yanagidaira K, Sasaki H, Muto M, Okada T, Ito Y.
J Chromatogr A. 2003 Jul 11;1005(1-2):103-12.
[Text Abstract on PubMed]

Preparative isolation and purification of two isoflavones from Astragalus membranaceus Bge. var. mongholicus (Bge.) Hsiao by high-speed counter-current chromatography.
Ma X, Tu P, Chen Y, Zhang T, Wei Y, Ito Y.
J Chromatogr A. 2003 Apr 11;992(1-2):193-7.
[Text Abstract on PubMed]

Purification of quinoline yellow components using high-speed counter-current chromatography by stepwise increasing the flow-rate of the mobile phase.
Oka H, Harada K, Suzuki M, Fujii K, Iwaya M, Ito Y, Goto T, Matsumoto H, Ito Y.
J Chromatogr A. 2003 Mar 14;989(2):249-55.
[Text Abstract on PubMed]

Novel method for continuous cell separation by density gradient centrifugation: evaluation of a miniature separation column.
Shiono H, Ito Y.
Prep Biochem Biotechnol. 2003 May ;33(2):87-100.
[Text Abstract on PubMed]

Purification of long-chain fatty acid ester of epigallocatechin-3-O-gallate by high-speed counter-current chromatography.
Chen P, Wang H, Du Q, Ito Y.
J Chromatogr A. 2002 Dec 20;982(1):163-5.
[Text Abstract on PubMed]

Purification of (+)-dihydromyricetin from leaves extract of Ampelopsis grossedentata using high-speed countercurrent chromatograph with scale-up triple columns.
Du Q, Cai W, Xia M, Ito Y.
J Chromatogr A. 2002 Oct 11;973(1-2):217-20.
[Text Abstract on PubMed]

Separation of salidroside from Rhodiola crenulata by high-speed counter-current chromatography.
Han X, Zhang T, Wei Y, Cao X, Ito Y.
J Chromatogr A. 2002 Sep 20;971(1-2):237-41.
[Text Abstract on PubMed]

Purification of lactic acid dehydrogenase from crude bovine heart extract by pH-peak focusing counter-current chromatography.
Shibusawa Y, Misu N, Shindo H, Ito Y.
J Chromatogr B Analyt Technol Biomed Life Sci. 2002 Sep 5;776(2):183-9.
[Text Abstract on PubMed]

Preparative separation of isomeric sulfophthalic acids by conventional and pH-zone-refining counter-current chromatography.
Weisz A, Mazzola EP, Murphy CM, Ito Y.
J Chromatogr A. 2002 Aug 9;966(1-2):111-8.
[Text Abstract on PubMed]

Purification of icariin from the extract of Epimedium segittatum using high-speed counter-current chromatography.
Du Q, Xia M, Ito Y.
J Chromatogr A. 2002 Jul 12;962(1-2):239-41.
[Text Abstract on PubMed]

Preparative isolation and purification of calycosin from Astragalus membranaceus Bge. var. mongholicus (Bge.) Hsiao by high-speed counter-current chromatography.
Ma X, Zhang T, Wei Y, Tu P, Chen Y, Ito Y.
J Chromatogr A. 2002 Jul 12;962(1-2):243-7.
[Text Abstract on PubMed]

Purification of Food Color Red No. 106 (acid red) using pH-zone-refining counter-current chromatography.
Oka H, Suzuki M, Harada K, Iwaya M, Fujii K, Goto T, Ito Y, Matsumoto H, Ito Y.
J Chromatogr A. 2002 Feb 8;946(1-2):157-62.
[Text Abstract on PubMed]

Separation of tanshinones from Salvia miltiorrhiza bunge by multidimensional counter-current chromatography.
Tian G, Zhang T, Zhang Y, Ito Y.
J Chromatogr A. 2002 Feb 1;945(1-2):281-5.
[Text Abstract on PubMed]

Preparative separation of lappaconitine, ranaconitine, N-deacetyllappaconitine and N-deacetylranaconitine from crude alkaloids of sample Aconitum sinomontanum Nakai by high-speed counter-current chromatography.
Yang F, Ito Y.
J Chromatogr A. 2002 Jan 18;943(2):219-25.
[Text Abstract on PubMed]

Method for the fractionation of dextran by centrifugal precipitation chromatography.
Yang F, Ito Y.
Anal Chem. 2002 Jan 15;74(2):440-5.
[Text Abstract on PubMed]

Separation of WAP-8294A components, a novel anti-methicillin-resistant staphylococcus aureus antibiotic, using high-speed counter-current chromatography.
Harad KI, Suzuki M, Kato A, Fujii K, Oka H, Ito Y.
J Chromatogr A. 2001 Oct 12;932(1-2):75-81.
[Text Abstract on PubMed]

Application of analytical and preparative high-speed counter-current chromatography for separation of lycopene from crude extract of tomato paste.
Wei Y, Zhang T, Xu G, Ito Y.
J Chromatogr A. 2001 Sep 21;929(1-2):169-73.
[Text Abstract on PubMed]

Separation and purification of isoflavones from a crude soybean extract by high-speed counter-current chromatography.
Yang F, Ma Y, Ito Y.
J Chromatogr A. 2001 Sep 14;928(2):163-70.
[Text Abstract on PubMed]

Preparative separation of isoflavone components in soybeans using high-speed counter-current chromatography.
Du Q, Lib Z, Ito Y.
J Chromatogr A. 2001 Jul 20;923(1-2):271-4.
[Text Abstract on PubMed]

PH-Zone-refining counter-current chromatography of lappaconitine from Aconitum sinomontanum nakai I. Separation of prepurified extract.
Yang F, Ito Y.
J Chromatogr A. 2001 Jul 20;923(1-2):281-5.
[Text Abstract on PubMed]

Preparative separation of isomeric 2-(2-quinolinyl)-1H-indene-1,3(2H)-dione monosulfonic acids of the color additive D&C Yellow No. 10 (quinoline yellow) by pH-zone-refining counter-current chromatography.
Weisz A, Mazzola EP, Matusik JE, Ito Y.
J Chromatogr A. 2001 Jul 20;923(1-2):87-96.
[Text Abstract on PubMed]

Evaluation of different tubing geometries for high-speed counter-current chromatography.
Degenhardt A, Schwarz M, Winterhalter P, Ito Y.
J Chromatogr A. 2001 Jul 13;922(1-2):355-8.
[Text Abstract on PubMed]

Separation of radioactive metabolites in cultured tea cells fed with [14C]phenylalanine using high-speed counter-current chromatography.
Du Q, Cheng H, Ito Y.
J Chromatogr A. 2001 Jul 6;921(2):331-4.
[Text Abstract on PubMed]

Large-scale separation of resveratrol, anthraglycoside A and anthraglycoside B from Polygonum cuspidatum Sieb. et Zucc by high-speed counter-current chromatography.
Yang F, Zhang T, Ito Y.
J Chromatogr A. 2001 Jun 15;919(2):443-8.
[Text Abstract on PubMed]

Counter-current chromatographic separation of glycoprotein components from Morchella esculenta (L.) with a polymer phase system by a cross-axis coil planet centrifuge.
Wei Y, Zhang T, Ito Y.
J Chromatogr A. 2001 May 11;917(1-2):347-51.
[Text Abstract on PubMed]

Separation of apple procyanidins into different degrees of polymerization by high-speed counter-current chromatography.
Shibusaw Y, Yanagida A, Isozaki M, Shindo H, Ito Y.
J Chromatogr A. 2001 Apr 27;915(1-2):253-7.
[Text Abstract on PubMed]

Preparative isolation and purification of acteoside and 2'-acetyl acteoside from Cistanches salsa (C.A. Mey.) G. Beck by high-speed counter-current chromatography.
Lei L, Yang F, Zhang T, Tu P, Wu L, Ito Y.
J Chromatogr A. 2001 Mar 30;912(1):181-5.
[Text Abstract on PubMed]

Separation of tanshinones from Salvia miltiorrhiza Bunge by high-speed counter-current chromatography using stepwise elution.
Tian G, Zhang Y, Zhang T, Yang F, Ito Y.
J Chromatogr A. 2000 Dec 22;904(1):107-11.
[Text Abstract on PubMed]

Supercritical fluid extraction of catechins from Cratoxylum prunifolium dyer and subsequent purification by high-speed counter-current chromatography.
Cao XL, Tian Y, Zhang TY, Ito Y.
J Chromatogr A. 2000 Nov 10;898(1):75-81.
[Text Abstract on PubMed]

High-speed counter-current chromatography of apple procyanidins.
Shibusawa Y, Yanagida A, Ito A, Ichihashi K, Shindo H, Ito Y.
J Chromatogr A. 2000 Jul 21;886(1-2):65-73.
[Text Abstract on PubMed]

Separation of gallic acid from Cornus officinalis Sieb. et Zucc by high-speed counter-current chromatography.
Tian G, Zhang T, Yang F, Ito Y.
J Chromatogr A. 2000 Jul 21;886(1-2):309-12.
[Text Abstract on PubMed]

Low-speed rotary countercurrent chromatography using a convoluted multilayer helical tube for industrial separation
Du Q, Wu P, Ito Y.
Anal Chem. 2000 Jul 15;72(14):3363-5.
[Text Abstract on PubMed]

Preparative isolation and purification of notopterol and isoimperatorin from Notopterygium forbessi Boiss (Chinese traditional medicinal herb) by high-speed counter-current chromatography.
Yang F, Zhang T, Liu Q, Xu G, Zhang Y, Zhang S, Ito Y.
J Chromatogr A. 2000 Jun 23;883(1-2):67-73.
[Text Abstract on PubMed]

New flow-through centrifuge without rotating seals applied to plasmapheresis. 1975.
Ito Y, Suaudeau J, Bowman RL.
Ther Apher. 2000 Apr;4(2):95-7.
[Text Abstract on PubMed]

Recycling foam countercurrent chromatography
Oka H, Iwaya M, Harada K, Suzuki M, Ito Y.
Anal Chem. 2000 Apr 1;72(7):1490-4.
[Text Abstract on PubMed]

Separation of spiramycin components using high-speed counter-current chromatography.
Oka H, Harada K, Suzuki M, Ito Y.
J Chromatogr A. 2000 Dec ;903(1-2):93-8.
[Text Abstract on PubMed]

On-line microextraction of metal traces for subsequent determination by plasma atomic emission spectrometry using pH peak focusing countercurrent chromatography.
Kitazume E, Higashiyama T, Sato N, Kanetomo M, Tajima T, Kobayashi S, Ito Y.
Anal Chem. 1999 Dec 15;71(24):5515-21.
[Text Abstract on PubMed]

Preparative isolation and purification of hydroxyanthraquinones from Rheum officinale Baill by high-speed counter-current chromatography using pH-modulated stepwise elution.
Yang F, Zhang T, Tian G, Cao H, Liu Q, Ito Y.
J Chromatogr A. 1999 Oct 8;858(1):103-7.
[Text Abstract on PubMed]

Separation and purification of isoflavones from Pueraria lobata by high-speed counter-current chromatography.
Cao X, Tian Y, Zhang T, Li X, Ito Y.
J Chromatogr A. 1999 Sep 10;855(2):709-13.
[Text Abstract on PubMed]

12 standardization of biological dyes and stains through use of pH-zone-refining countercurrent chromatography
Weisz A, Ito Y.
J Histochem Cytochem. 1999 Dec ;47(12):1645B-1645.
[Text Abstract on PubMed]

Application of analytical and preparative high-speed counter-current chromatography for separation of alkaloids from Coptis chinensis Franch.
Yang F, Zhang T, Zhang R, Ito Y.
J Chromatogr A. 1998 Dec 31;829(1-2):137-41.
[Text Abstract on PubMed]

Preparative separation of alkaloids from the root of Sophora flavescens Ait by pH-zone-refining counter-current chromatography.
Yang F, Quan J, Zhang T, Ito Y.
J Chromatogr A. 1998 Oct 2;822(2):316-20.
[Text Abstract on PubMed]

Separation and purification of 10-deacetylbaccatin III by high-speed counter-current chromatography.
Cao X, Tian Y, Zhang TY, Ito Y.
J Chromatogr A. 1998 Jul 17;813(2):397-401.
[Text Abstract on PubMed]

Separation of lac dye components by high-speed counter-current chromatography.
Oka H, Ito Y, Yamada S, Kagami T, Hayakawa J, Harada K, Atsumi E, Suzuki M, Suzuki M, Odani H, Akahori S, Maeda K, Nakazawa H, Ito Y.
J Chromatogr A. 1998 Jul 10;813(1):71-7.
[Text Abstract on PubMed]

Separation of antibiotics by counter-current chromatography.
Oka H, Harada K, Ito Y, Ito Y.
J Chromatogr A. 1998 Jul 3;812(1-2):35-52.
[Text Abstract on PubMed]

Toroidal coil counter-current chromatography. Achievement of high resolution by optimizing flow-rate, rotation speed, sample volume and tube length.
Matsuda K, Matsuda S, Ito Y.
J Chromatogr A. 1998 May 29;808(1-2):95-104.
[Text Abstract on PubMed]

One-step purification of proteins from chicken egg white using counter-current chromatography.
Shibusawa Y, Kihira S, Ito Y.
J Chromatogr B Biomed Sci Appl. 1998 May 29;709(2):301-5.
[Text Abstract on PubMed]

Multidimensional counter-current chromatographic system and its application.
Yang F, Quan J, Zhang TY, Ito Y.
J Chromatogr A. 1998 Apr 17;803(1-2):298-301.
[Text Abstract on PubMed]

Toroidal coil counter-current chromatography study of the mass transfer rate of proteins in aqueous-aqueous polymer phase system.
Ito Y, Matsuda K, Ma Y, Qi L.
J Chromatogr A. 1998 Apr 10;802(2):277-83.
[Text Abstract on PubMed]

Semi-preparative separation and purification of taxol analogs by high-speed countercurrent chromatography.
Cao X, Tian Y, Zhang TY, Ito Y.
Prep Biochem Biotechnol. 1998 Feb ;28(1):79-87.
[Text Abstract on PubMed]

Purification of proteins with aqueous two-phase solvent systems by countercurrent chromatography.
Shibusawa Y, Ito Y.
Prep Biochem Biotechnol. 1998 May ;28(2):99-136.
[Text Abstract on PubMed]

Purification of lactic acid dehydrogenase from bovine heart crude extract by counter-current chromatography.
Shibusawa Y, Eriguchi Y, Ito Y.
J Chromatogr B Biomed Sci Appl. 1997 Aug 15;696(1):25-31.
[Text Abstract on PubMed]

Peptide separation by pH-zone-refining countercurrent chromatography.
Ma Y, Ito Y.
J Chromatogr A. 1997 May 30;771(1-2):81-8.
[Text Abstract on PubMed]

pH-zone-refining countercurrent chromatography.
Ito Y, Ma Y.
J Chromatogr A. 1996 Nov 8;753(1):1-36.
[Text Abstract on PubMed]

Isolation of 4'-bromo-4,5,6,7-tetrachlorofluorescein from a synthetic mixture by pH-zone-refining counter-current chromatography with continuous pH monitoring.
Weisz A, Scher AL, Ito Y.
J Chromatogr A. 1996 May 3;732(2):283-90.
[Text Abstract on PubMed]

Affinity countercurrent chromatography using a ligand in the stationary phase.
Ma Y, Ito Y.
Anal Chem. 1996 Apr 1;68(7):1207-11.
[Text Abstract on PubMed]

Countercurrent chromatographic analysis of ovalbumin obtained from various sources using the cross-axis coil planet centrifuge.
Shinomiya K, Inokuchi N, Gnabre JN, Muto M, Kabasawa Y, Fales HM, Ito Y.
J Chromatogr A. 1996 Feb 16;724(1-2):179-84.
[Text Abstract on PubMed]

pH-Zone refining counter-current chromatography of polar catecholamines using di-(2-ethylhexyl)phosphoric acid as a ligand.
Ma Y, Sokoloski E, Ito Y.
J Chromatogr A. 1996 Feb 16;724(1-2):348-53.
[Text Abstract on PubMed]

Isolation of anti-HIV-1 lignans from Larrea tridentata by counter-current chromatography.
Gnabre JN, Ito Y, Ma Y, Huang RC.
J Chromatogr A. 1996 Jan 8;719(2):353-64.
[Text Abstract on PubMed]

Chiral separation by high-speed countercurrent chromatography.
Ma Y, Ito Y.
Anal Chem. 1995 Sep 1;67(17):3069-74.
[Text Abstract on PubMed]

Resolution of gram quantities of racemates by high-speed counter-current chromatography.
Ma Y, Ito Y, Foucault A.
J Chromatogr A. 1995 Jun 2;704(1):75-81.
[Text Abstract on PubMed]

Separation of peptide derivatives by pH-zone-refining counter-current chromatography.
Ma Y, Ito Y.
J Chromatogr A. 1995 May 19;702(1-2):197-206.
[Text Abstract on PubMed]

Separation and purification of peptides by high-speed counter-current chromatography.
Knight M, Fagarasan MO, Takahashi K, Geblaoui AZ, Ma Y, Ito Y.
J Chromatogr A. 1995 May 19;702(1-2):207-14.
[Text Abstract on PubMed]

Complementary use of counter-current chromatography and hydroxyapatite chromatography for the separation of three main classes of lipoproteins from human serum.
Shibusawa Y, Mugiyama M, Matsumoto U, Ito Y.
J Chromatogr B Biomed Appl. 1995 Feb 17;664(2):295-301.
[Text Abstract on PubMed]

Purification of (-)-epigallocatechin from enzymatic hydrolysate of its gallate using high-speed counter-current chromatography.
Du Q, Li M, Cheng Q, Zhang TY, Ito Y.
J Chromatogr A. 1994 Dec 9;687(1):174-7.
[Text Abstract on PubMed]

Preparative separation of stereoisomeric 1-methyl-4-methoxymethylcyclohexanecarboxylic acids by pH-zone-refining counter-current chromatography.
Denekamp C, Mandelbaum A, Weisz A, Ito Y.
J Chromatogr A. 1994 Nov 18;685(2):253-7.
[Text Abstract on PubMed]

Separation of alkaloids by pH-zone-refining counter-current chromatography.
Ma Y, Ito Y, Sokolosky E, Fales HM.
J Chromatogr A. 1994 Nov 18;685(2):259-62.
[Text Abstract on PubMed]

Separations of basic amino acid benzyl esters by pH-zone-refining counter-current chromatography.
Ma Y, Ito Y.
J Chromatogr A. 1994 Sep 2;678(2):233-40.
[Text Abstract on PubMed]

Preparative separation of components of the color additive D&C Red No. 28 (phloxine B) by pH-zone-refining counter-current chromatography.
Weisz A, Andrzejewski D, Ito Y.
J Chromatogr A. 1994 Aug 26;678(1):77-84.
[Text Abstract on PubMed]

pH-zone-refining counter-current chromatography: a displacement mode applied to separation of dinitrophenyl amino acids.
Ito Y, Ma Y.
J Chromatogr A. 1994 Jun 24;672(1-2):101-8.
[Text Abstract on PubMed]

Studies on a new cross-axis coil planet centrifuge for performing counter-current chromatography. I. Design of the apparatus, retention of the stationary phase, and efficiency in the separation of proteins with polymer phase systems.
Shinomiya K, Menet JM, Fales HM, Ito Y.
J Chromatogr. 1993 Aug 6;644(2):215-29.
[Text Abstract on PubMed]

Studies on a new cross-axis coil planet centrifuge for performing counter-current chromatography. II. Path and acceleration of coils and comparison with type J coil planet centrifuge.
Menet JM, Ito Y.
J Chromatogr. 1993 Aug 6;644(2):231-8.
[Text Abstract on PubMed]

Studies on new cross-axis coil planet centrifuge for performing counter-current chromatography. III. Speculations on the hydrodynamic mechanism in stationary phase retention.
Menet JM, Shinomiya K, Ito Y.
J Chromatogr. 1993 Aug 6;644(2):239-52.
[Text Abstract on PubMed]

Studies on an abnormally sharpened elution peak observed in counter-current chromatography.
Ito Y, Shibusawa Y, Fales HM, Cahnmann HJ.
J Chromatogr. 1992 Nov 20;625(2):177-81.
[Text Abstract on PubMed]

Complementary use of counter-current chromatography and preparative reversed-phase high-performance liquid chromatography in the separation of a synthetic mixture of brominated tetrachlorofluoresceins.
Weisz A, Scher AL, Andrzejewski D, Shibusawa Y, Ito Y.
J Chromatogr. 1992 Aug 21;607(1):47-53.
[Text Abstract on PubMed]

Synthesis and properties of N-bromoacetyl-L-thyroxine.
Cahnmann HJ, Gonçalves E, Ito Y, Fales HM, Sokoloski EA.
Anal Biochem. 1992 Aug 1;204(2):344-50.
[Text Abstract on PubMed]

Counter-current chromatography of lipoproteins with a polymer phase system using the cross-axis synchronous coil planet centrifuge.
Shibusawa Y, Ito Y, Ikewaki K, Rader DJ, Brewer HB Jr.
J Chromatogr. 1992 Apr 3;596(1):118-22.
[Text Abstract on PubMed]

Direct interfacing of high-speed countercurrent chromatography to frit electron ionization, chemical ionization, and fast atom bombardment mass spectrometry.
Oka H, Ikai Y, Kawamura N, Hayakawa J, Harada K, Murata H, Suzuki M, Ito Y.
Anal Chem. 1991 Dec 15;63(24):2861-5.
[Text Abstract on PubMed]

Protein separation with aqueous-aqueous polymer systems by two types of counter-current chromatographs.
Shibusawa Y, Ito Y.
J Chromatogr. 1991 Jul 26;550(1-2):695-704.
[Text Abstract on PubMed]

Preparative purification of tetrabromotetrachlorofluorescein and phloxine B by centrifugal counter-current chromatography.
Weisz A, Langowski AJ, Meyers MB, Thieken MA, Ito Y.
J Chromatogr. 1991 Jan 18;538(1):157-64.
[Text Abstract on PubMed]

Separation of rare earth elements by high-speed counter-current chromatography.
Kitazume E, Bhatnagar M, Ito Y.
J Chromatogr. 1991 Jan 18;538(1):133-40.
[Text Abstract on PubMed]

Synthesis and characterization of N-bromoacetyl-3,3',5-triiodo-L-thyronine.
Cahnmann HJ, Gonçalves E, Ito Y, Fales HM, Sokoloski EA.
J Chromatogr. 1991 Jan 18;538(1):165-75.
[Text Abstract on PubMed]

Semi-preparative purification of an endogenous ligand for brain serotonin-2 receptors by coil planet centrifuge counter-current chromatography.
Apud JA, Ito Y.
J Chromatogr. 1991 Jan 18;538(1):177-85.
[Text Abstract on PubMed]

Isolation of bacitracins A and F by high-speed counter-current chromatography.
Harada K, Ikai Y, Yamazaki Y, Oka H, Suzuki M, Nakazawa H, Ito Y.
J Chromatogr. 1991 Jan 18;538(1):203-12.
[Text Abstract on PubMed]

Foam counter-current chromatography of bacitracin. II. Continuous removal and concentration of hydrophobic components with nitrogen gas and distilled water free of surfactants or other additives.
Oka H, Harada K, Suzuki M, Nakazawa H, Ito Y.
J Chromatogr. 1991 Jan 18;538(1):213-8.
[Text Abstract on PubMed]

Recent advances in counter-current chromatography.
Ito Y.
J Chromatogr. 1991 Jan 18;538(1):3-25.
[Text Abstract on PubMed]

Improved high-speed counter-current chromatograph with three multilayer coils connected in series. IV. Evaluation of preparative capability with large multilayer coils.
Ito Y, Kitazume E.
J Chromatogr. 1991 Jan 18;538(1):81-5.
[Text Abstract on PubMed]

Systematic search for suitable two-phase solvent systems for high-speed counter-current chromatography.
Oka F, Oka H, Ito Y.
J Chromatogr. 1991 Jan 18;538(1):99-108.
[Text Abstract on PubMed]

Application of countercurrent chromatography/thermospray mass spectrometry for the identification of bioactive lignans from plant natural products.
Lee YW, Voyksner RD, Pack TW, Cook CE, Fang QC, Ito Y.
Anal Chem. 1990 Feb 1;62(3):244-8.
[Text Abstract on PubMed]

Improved high-speed counter-current chromatograph with three multilayer coils connected in series. II. Separation of various biological samples with a semi-preparative column.
Ito Y, Oka H, Lee YW.
J Chromatogr. 1990 Jan 5;498(1):169-78.
[Text Abstract on PubMed]

Chromatography of peptides on a multi-coil counter-current chromatograph.
Knight M, Ito Y.
J Chromatogr. 1989 Dec 22;484:319-25.
[Text Abstract on PubMed]

Foam counter-current chromatography of bacitracin. I. Batch separation with nitrogen and water free of additives.
Oka H, Harada K, Suzuki M, Nakazawa H, Ito Y.
J Chromatogr. 1989 Nov 17;482(1):197-205.
[Text Abstract on PubMed]

Multilayer coil planet centrifuge for analytical high-speed counter-current chromatography.
Oka H, Oka F, Ito Y.
J Chromatogr. 1989 Sep 22;479(1):53-60.
[Text Abstract on PubMed]

Foam countercurrent chromatography of bacitracin with nitrogen and additive-free water.
Oka H, Harada K, Suzuki M, Nakazawa H, Ito Y.
Anal Chem. 1989 Sep 1;61(17):1998-2000.
[Text Abstract on PubMed]

Application of analytical high-speed counter-current chromatography to the isolation of bioactive natural products.
Lee YW, Cook CE, Fang QC, Ito Y.
J Chromatogr. 1989 Aug 30;477(2):434-8.
[Text Abstract on PubMed]

Improved high-speed counter-current chromatograph with three multilayer coils connected in series. I. Design of the apparatus and performance of semipreparative columns in 2,4-dinitrophenyl amino acid separation.
Ito Y, Oka H, Slemp JL.
J Chromatogr. 1989 Jul 28;475:219-27.
[Text Abstract on PubMed]

Improved method for continuous UV monitoring in high-speed counter-current chromatography.
Oka H, Ito Y.
J Chromatogr. 1989 Jul 28;475:229-35.
[Text Abstract on PubMed]

Improved cross-axis synchronous flow-through coil planet centrifuge for performing counter-current chromatography. I. Design of the apparatus and analysis of acceleration.
Ito Y, Oka H, Slemp JL.
J Chromatogr. 1989 Feb 3;463(2):305-16.
[Text Abstract on PubMed]

Improved cross-axis synchronous flow-through coil planet centrifuge for performing counter-current chromatography. II. Studies on retention of stationary phase in short coils and preparative separations in multilayer coils.
Bhatnagar M, Oka H, Ito Y.
J Chromatogr. 1989 Feb 3;463(2):317-28.
[Text Abstract on PubMed]

Horizontal flow-through coil planet centrifuge equipped with a set of multilayer coils around the column holder. Counter-current chromatography of proteins with a polymer-phase system.
Ito Y, Oka H.
J Chromatogr. 1988 Dec 21;457:393-7.
[Text Abstract on PubMed]

Cross-axis synchronous flow-through coil planet centrifuge for large-scale preparative counter-current chromatography. III. Performance of large-bore coils in slow planetary motion.
Ito Y, Zhang TY.
J Chromatogr. 1988 Nov 25;455:151-62.
[Text Abstract on PubMed]

Preliminary applications of cross-axis synchronous flow-through coil planet centrifuge for large-scale preparative counter-current chromatography.
Zhang TY, Lee YW, Fang QC, Xiao R, Ito Y.
J Chromatogr. 1988 Nov 11;454:185-93.
[Text Abstract on PubMed]

New high-speed counter-current chromatograph equipped with a pair of separation columns connected in series.
Ito Y, Chou FE.
J Chromatogr. 1988 Nov 11;454:382-6.
[Text Abstract on PubMed]

Cross-axis synchronous flow-through coil planet centrifuge for large-scale preparative counter-current chromatography. I. Apparatus and studies on stationary phase retention in short coils.
Ito Y, Zhang TY.
J Chromatogr. 1988 Sep 30;449(1):135-51.
[Text Abstract on PubMed]

Rapid separation of flavonoids by analytical high-speed counter-current chromatography.
Zhang TY, Xiao R, Xiao ZY, Pannell LK, Ito Y.
J Chromatogr. 1988 Jul 8;445(1):199-206.
[Text Abstract on PubMed]

Separation of hydroxyanthraquinone derivatives extracted from rheum with analytical high-speed counter-current chromatography.
Zhang TY, Pannell LK, Pu QL, Cai DG, Ito Y.
J Chromatogr. 1988 Jun 17;442:455-8.
[Text Abstract on PubMed]

Multi-stage mixer-settler planet centrifuge. Preliminary studies on partition of macromolecules with organic-aqueous and aqueous-aqueous two-phase solvent systems.
Ito Y, Zhang TY.
J Chromatogr. 1988 Mar 11;437(1):121-9.
[Text Abstract on PubMed]

Separations of flavonoids and alkaloids in medicinal herbs by high-speed counter-current chromatography.
Zhang TY, Cai DG, Ito Y.
J Chromatogr. 1988 Jan 1;435(1):159-66.
[Text Abstract on PubMed]

Counter-current chromatographic purification of [D-Ala]peptide T amide.
Burke TR Jr, Knight M.
J Chromatogr. 1987 Dec 18;411:431-5.
[Text Abstract on PubMed]

Foam counter-current chromatography with the cross-axis synchronous flow-through coil planet centrifuge.
Ito Y.
J Chromatogr. 1987 Aug 21;403:77-84.
[Text Abstract on PubMed]

High-speed countercurrent chromatography.
Ito Y.
Nature. 1987 Mar 26-Apr 1;326(6111):419-20.
[Text Abstract on PubMed]

Analytical high-speed counter-current chromatography with a coil planet centrifuge.
Ito Y, Lee YW.
J Chromatogr. 1987 Mar 27;391(1):290-5.
[Text Abstract on PubMed]

Preparative low-pressure chromatography of antibiotics on a column of diol-bonded silica gel.
Rasmussen RR, Scherr MH.
J Chromatogr. 1987 Jan 16;386:325-32.
[Text Abstract on PubMed]

Counter-current chromatography. Applications to the separation of biopolymers, organelles and cells using either aqueous-organic or aqueous-aqueous phase systems.
Sutherland IA, Heywood-Waddington D, Ito Y.
J Chromatogr. 1987 Jan 2;384:197-207.
[Text Abstract on PubMed]

New angle rotor coil planet centrifuge for counter-current chromatography. II. Design of the apparatus and studies on phase retention and partition capability.
Ito Y.
J Chromatogr. 1986 May 23;358(2):325-36.
[Text Abstract on PubMed]

Separation of the components of commercial digitonin using high-performance liquid chromatography and centrifugal countercurrent chromatography. Identification of the products by californium-252 plasma desorption mass spectrometry.
Yang YM, Lloyd HA, Pannell LK, Fales HM, Macfarlane RD, McNeal CJ, Ito Y.
Biomed Environ Mass Spectrom. 1986 Aug ;13(8):439-45.
[Text Abstract on PubMed]

Large-scale preparative countercurrent chromatography for separation of polar compounds.
Sandlin JL, Ito Y.
J Chromatogr. 1985 Nov 27;348(1):131-9.
[Text Abstract on PubMed]

Development of high-speed countercurrent chromatography.
Ito Y.
Adv Chromatogr. 1984 01 ;24:181-226.
[Text Abstract on PubMed]

Countercurrent chromatography.
Ito Y.
Methods Enzymol. 1983 01 ;91:335-51.
[Text Abstract on PubMed]

Countercurrent chromatography.
Ito Y.
J Biochem Biophys Methods. 1981 Aug ;5(2):105-29.
[Text Abstract on PubMed]

[Countercurrent chromatography : principle and application (author's transl)].
Ito Y.
Tanpakushitsu Kakusan Koso. 1981 Jul ;26(8):1020-46.
[Text Abstract on PubMed]

The toroidal coil planet centrifuge without rotating seals applied to countercurrent chromatography.
Ito Y.
Anal Biochem. 1980 Feb ;102(1):150-2.
[Text Abstract on PubMed]

Separation of prostaglandins using the new horizontal flow-through coil planet centrifuge.
Brown EA, Ito Y.
J Biochem Biophys Methods. 1980 Aug ;3(2):77-87.
[Text Abstract on PubMed]

Countercurrent chromatography with a new horizontal flow-through coil planet centrifuge.
Ito Y.
Anal Biochem. 1979 Dec ;100(2):271-81.
[Text Abstract on PubMed]

Countercurrent chromatography--a new method for the fractionation of glycosaminoglycans.
Hurst RE, Sheng JY, Ito Y.
Anal Biochem. 1978 Mar ;85(1):230-8.
[Text Abstract on PubMed]

Countercurrent chromatography with the flow-through centrifuge without rotating seals.
Ito Y, Bowman RL.
Anal Biochem. 1978 Apr ;85(2):614-7.
[Text Abstract on PubMed]

Preparative countercurrent chromatography with a slowly rotating helical tube.
Ito Y, Bowman RL.
J Chromatogr. 1977 Jun 11;136(2):189-98.
[Text Abstract on PubMed]

Preparative countercurrent chromatography with a slowly rotating helical tube.
Ito Y, Bowman RL.
Anal Biochem. 1977 Apr ;78(2):506-12.
[Text Abstract on PubMed]

Horizontal flow-through coil planet centrifuge without rotating seals.
Ito Y, Bowman RL.
Anal Biochem. 1977 Sep ;82(1):63-8.
[Text Abstract on PubMed]

New flow-through centrifuge without rotating seals applied to plasmapheresis.
Ito Y, Suaudeau J, Bowman RL.
Science. 1975 Sep 19;189(4207):999-1000.
[Text Abstract on PubMed]

Angel rotor countercurrent chromatography.
Ito Y, Bowman RL.
Anal Biochem. 1975 May 12;65(1-2):310-20.
[Text Abstract on PubMed]

Particle separation with the flow-through coil planet centrifuge.
Ito Y, Bowman RL.
Anal Biochem. 1974 Sep ;61(1):288-91.
[Text Abstract on PubMed]

Application of the elution centrifuge to separation of polynucleotides with the use of polymer phase systems.
Ito Y, Bowman RL.
Science. 1973 Oct 26;182(4110):391-3.
[Text Abstract on PubMed]

Countercurrent chromatography with the flow-through coil planet centrifuge.
Ito Y, Bowman RL.
J Chromatogr Sci. 1973 Jun ;11(6):284-91.
[Text Abstract on PubMed]

Countercurrent chromatographic separation of catecholamine metabolites from urine.
Hurst RE, Ito Y.
Clin Chem. 1972 Aug ;18(8):814-20.
[Text Abstract on PubMed]

The elution centrifuge applied to countercurrent chromatography.
Ito Y, Bowman RL, Noble FW.
Anal Biochem. 1972 Sep ;49(1):1-8.
[Text Abstract on PubMed]

Countercurrent chromatography with flow-through coil planet centrifuge.
Ito Y, Bowman RL.
Science. 1971 Jul 30;173(3995):420-2.
[Text Abstract on PubMed]

Droplet countercurrent chromatography.
Tanimura T, Pisano JJ, Ito Y, Bowman RL.
Science. 1970 Jul 3;169(3940):54-6.
[Text Abstract on PubMed]

Countercurrent chromatography: liquid-liquid partition chromatography without solid support.
Ito Y, Bowman RL.
Science. 1970 Jan 16;167(3916):281-3.
[Text Abstract on PubMed]

The coil planet centrifuge.
Ito Y, Weinstein M, Aoki I, Harada R, Kimura E, Nunogaki K.
Nature. 1966 Dec 3;212(5066):985-7.
[Text Abstract on PubMed]