Results 131 to 140 of about 951 (168)

Isolation of Colistin A and B Using High-Speed Countercurrent Chromatography

Journal of Liquid Chromatography & Related Technologies, 1998
Abstract High-speed countercurrent chromatography was successfully applied to the isolation of colistin-A and colistin-B from a commercial colistin preparation. As the first step. TLC and HPLC analysis conditions for the colistin components were established.
Y. Ikai, H. Oka, J. Hayakawa, N. Kawamura, K. Harada, M. Suzuki, H. Nakazawa, Y. Ito   +7 more
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PREPARATIVE SEPARATION OF β-SITOSTEROL BY HIGH SPEED COUNTERCURRENT CHROMATOGRAPHY

Journal of Liquid Chromatography & Related Technologies, 2002
β-sitosterol was successfully separated and purified from both β-sitosterol standard (about 60% purity) and crude sterols using high-speed countercurrent chromatography (HSCCC) with a heptane–aceto...
Yujie Zhou, Fuming Chen, Zongcheng Li
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Enrichment and Separation of Holmium and Erbium by High-Speed Countercurrent Chromatography

Journal of Liquid Chromatography & Related Technologies, 1997
Abstract Selective enrichment of rare earth elements and subsequent separation were performed by high-speed countercurrent chromatography (CCC) using a multilayer coiled column filled with a toluene solution of 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester as a stationary phase.
Kenichi Akiba, Hiroyuki Hashimoto, Shigeto Nakamura, Yoshihiro Saito   +3 more
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Separation of High Purity Przewaquinone A by High‐Speed Countercurrent Chromatography

Journal of Liquid Chromatography & Related Technologies, 2003
Abstract High‐speed countercurrent chromatography (HSCCC) was used to purify przewaquinone A from the extract of Salvia miltiorrhiza Bunge using a two‐phase solvent system composed of carbon tetrachloride–methanol–water–n‐hexane, at an optimum volume ratio of 3:3:2:1.
Xiao Han, Tianyou Zhang, Yoichiro Ito
openaire   +1 more source

[Separation of isomeric compounds by high speed countercurrent chromatography].

Se pu = Chinese journal of chromatography, 2010
High speed countercurrent chromatography (HSCCC) was successfully used for the separation and preparation of isomeric compounds. The influence of various two-phase solvent systems on the resolution of the natural catechin isomers of (-) -epigallocatechin gallate (EGCG) and (-) -gallocatechin gallate (GCG) from green tea polyphenols and the synthetic ...
Li, Chen, Lijie, Deng, Ping, Chen
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High-speed countercurrent chromatography for separation of americium from lanthanoids

Journal of Radioanalytical and Nuclear Chemistry, 2001
The separation of americium from lighter lanthanoids has been performedby high-speed countercurrent chromatograph (CCC) equipped with a small coiledcolumn. An extractant having higher affinity for americium, 5,8-diethyl-7-hydroxydodecan-6-oneoxime (LIX 63) was employed as a stationary phase.
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High-Speed countercurrent chromatography

TrAC Trends in Analytical Chemistry, 1997
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DYES | High-Speed Countercurrent Chromatography

2000
A. Weisz, Y. Ito
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ANTIBIOTICS | High-Speed Countercurrent Chromatography

2000
H. Oka, Y. Ito
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PROTEINS | High-Speed Countercurrent Chromatography

2000
Y. Shibuswa, Y. Ito
openaire   +1 more source