Results 181 to 190 of about 4,005 (216)

Characterization of Pigments from Different High Speed Countercurrent Chromatography Wine Fractions

Journal of Agricultural and Food Chemistry, 2005
A red wine, made from Cabernet Sauvignon (60%) and Tannat (40%) cultivars, was fractionated by high speed countercurrent chromatography (HSCCC). The biphasic solvent system consisting of tert-butyl methyl ether/n-butanol/acetonitrile/water (2/2/1/5, acidified with 0.1% trifluoroacetic acid) was chosen for its demonstrated efficiency in separating ...
Salas, Erika, Dueñas, Montserrat, Schwarz, Michael, Winterhalter, Peter, Cheynier, Veronique, Fulcrand, Hélène   +5 more
openaire   +4 more sources

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
openaire   +1 more source

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
openaire   +1 more source

Application of High Speed Countercurrent Chromatography (HSCCC) to the Isolation of Kavalactones

Journal of Liquid Chromatography & Related Technologies, 2005
Abstract High speed countercurrent chromatography (HSCCC) was used to isolate the major kavalactones kavain, 7,8‐dihydrokavain, methysticin, 7,8‐dihydromethysticin, yangonin, and demethoxyyangonin. An ethanolic crude extract of kava root was subjected to HSCCC separation. Due to the presence of polymeric material, the sample load was limited.
Katrien Schäfer, Peter Winterhalter
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
openaire   +1 more source

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.
openaire   +1 more source

High-Speed countercurrent chromatography

TrAC Trends in Analytical Chemistry, 1997
openaire   +1 more source

ANTIBIOTICS | High-Speed Countercurrent Chromatography

2000
H. Oka, Y. Ito
openaire   +1 more source

PROTEINS | High-Speed Countercurrent Chromatography

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

DYES | High-Speed Countercurrent Chromatography

2000
A. Weisz, Y. Ito
openaire   +1 more source