Results 31 to 40 of about 132,429 (302)

High-Speed Counter-Current Chromatography in Separation and Identification of Saponins from Beta vulgaris L. Cultivar Red Sphere

open access: yesPolish Journal of Food and Nutrition Sciences, 2020
Saponins, natural plant compounds exhibiting health benefits, were extracted from B. vulgaris L. cultivar (cv.) Red Sphere and separated by high-speed counter-current chromatography (HSCCC) in a new solvent system composed of: TBME-BuOH-ACN-H2O (1:2:1 ...
Aneta Ewa Spórna-Kucab   +1 more
doaj   +1 more source

Separation and Preparation of Sanguinarine and Chelerythrine from Macleaya cordata Root by High Speed Counter-Current Chromatography

open access: yesShipin gongye ke-ji, 2022
The aim of this study was to develop a method for the separation and preparation of high purity sanguinarine and chelerythrine by conventional high speed counter-current chromatography.
Changqing JIA   +4 more
doaj   +1 more source

The hexane-ethyl acetate-methanol-water system for the separation of theaflavins from black tea (Camellia sinensis) using high-speed counter-current chromatography

open access: yesCeylon Journal of Science, 2016
Theaflavins (TFs) from black tea leaves were separated using high-speed countercurrent chromatography (HSCCC). Isobutyl methyl ketone (4-methyl-2-pentanone) was used to separate the TFs from a hot water extract of black tea leaves.
N. Savitri Kumar   +2 more
doaj   +1 more source

Separation of avermectin components from Streptomyces avemitilis extraction using high-speed counter-current chromatography [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2013
Three compounds of antibiotics-avermectins from fertilizing product of Streptomyces avemitilis are achieved by high-speed counter-current chromatography (HSCCC) with a two-phase solvent system composed of n-hexane-ethyl acetate-methanol-water (6:
Su Weike, Hou Zhuoni, Liang Xianrui
doaj   +1 more source

Quaterpyridine Ligands for Panchromatic Ru(II) Dye Sensitizers [PDF]

open access: yes, 2012
A new general synthetic access to carboxylated quaterpyridines (qpy), of interest as ligands for panchromatic dyesensitized solar cell organometallic sensitizers, is presented.
Abbotto, Alessandro   +6 more
core   +1 more source

Preparative separation and purification of bufadienolides from ChanSu by high-speed counter-current chromatography combined with preparative HPLC

open access: yesQuímica Nova, 2013
Eight bufadienolides were successfully isolated and purified from ChanSu by high-speed counter-current chromatography (HSCCC) combined with preparative HPLC (prep-HPLC).
Jialian Li   +6 more
doaj   +1 more source

Purification of gangliosides by liquid-liquid partition chromatography

open access: yesJournal of Lipid Research, 2008
A liquid-liquid partition chromatographic technique was applied to separate amphiphilic glycolipids. A two-phase solvent system composed of n-butanol-t-butyl methyl ether-acetonitrile-water at a volume ratio of 3:1:1:5 was found to be suitable for ...
Tomohisa Kato, Kenichi Hatanaka
doaj   +1 more source

Separation of Four Flavonoid Glycosides from Hydrocotyle sibthorpioides Lam. by High-speed Counter-current Chromatography

open access: yesShipin gongye ke-ji, 2022
For an improved study of flavonoid glycosides of great polarity from Hydrocotyle sibthorpioides Lam (HSL), the large polar flavonoid glycosides were extracted with n-BuOH, purified by DM 301 macroporous resin, Sephadex LH-20 and reversed-phase silica gel
Daoguang SONG, Zhi CHEN
doaj   +1 more source

Transport in nanofluidic systems: a review of theory and applications [PDF]

open access: yes, 2010
In this paper transport through nanochannels is assessed, both of liquids and of dissolved molecules or ions. First, we review principles of transport at the nanoscale, which will involve the identification of important length scales where transitions in
Berg, A. van den   +2 more
core   +4 more sources

Isolation and purification of lignans from Schisandra chinensis by combination of silica gel column and high-speed counter-current chromatography [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2013
Silica gel column combined with high-speed counter-current chromatography separation was successfully applied to the separation of schizandrin (I), angeloylgomisin H (II), gomisin A (III), schisantherin C (IV), deoxyschizandrin (V), γ-schisandrin (VI)
Sun Yu   +4 more
doaj   +1 more source

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