Results 151 to 160 of about 19,209,961 (222)
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Biomedical chromotography, 2023
An efficient method was established by high-speed countercurrent chromatography (HSCCC) for separation and purification of three flavonoids from Oroxylum indicum.
Yan Zhou, Shan Hu, Hai-Tao Lu
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An efficient method was established by high-speed countercurrent chromatography (HSCCC) for separation and purification of three flavonoids from Oroxylum indicum.
Yan Zhou, Shan Hu, Hai-Tao Lu
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Journal of chromatography. B, Analytical technologies in the biomedical and life sciences
This study aimed to propose a straightforward approach for isolating a novel neolignan compound using high-speed countercurrent chromatography (HSCCC) in combination with spectrometric techniques.
A. M. Marques +8 more
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This study aimed to propose a straightforward approach for isolating a novel neolignan compound using high-speed countercurrent chromatography (HSCCC) in combination with spectrometric techniques.
A. M. Marques +8 more
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Journal of Separation Science, 2023
This research investigated the effectiveness of an integrated method for the extraction and separation of naphthoquinones and diarylheptanes from exocarp of Juglands mandshurica Maxim. (namely, green walnut husks).
Yuan-Hang Chang +4 more
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This research investigated the effectiveness of an integrated method for the extraction and separation of naphthoquinones and diarylheptanes from exocarp of Juglands mandshurica Maxim. (namely, green walnut husks).
Yuan-Hang Chang +4 more
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Mass transfer and separation criteria for high‐speed countercurrent chromatography
AIChE Journal, 2011AbstractHigh‐speed countercurrent chromatography (HSCCC) is a versatile technique for preparative separations of a wide variety of solutes. For optimization of operating conditions, prediction of separations, and scale‐up study, a model is needed to describe the effluent concentration profile, which determines the separation efficiency (mass transfer ...
Zhao, Chun-Xia, He, Chao-Hong
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Analytical Methods, 2022
The selection of an appropriate solvent system is the most crucial step in high-speed countercurrent chromatography (HSCCC) separation. The compound polarity plays an important role in HPLC analysis and HSCCC separation, and it can be calculated by the ...
Xiao-Han Zhu +6 more
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The selection of an appropriate solvent system is the most crucial step in high-speed countercurrent chromatography (HSCCC) separation. The compound polarity plays an important role in HPLC analysis and HSCCC separation, and it can be calculated by the ...
Xiao-Han Zhu +6 more
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Journal of Agricultural and Food Chemistry, 2008
Curcuminoids are substances of great interest because of their important pharmacological activities, particularly anti-inflammatory, anticarcinogenic, and anti-Alzheimer's activities. In this study, we report the first procedure and effect of processing for the high, efficient, and useful purification of curcumin, demethoxycurcumin, and ...
Koichi, Inoue +5 more
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Curcuminoids are substances of great interest because of their important pharmacological activities, particularly anti-inflammatory, anticarcinogenic, and anti-Alzheimer's activities. In this study, we report the first procedure and effect of processing for the high, efficient, and useful purification of curcumin, demethoxycurcumin, and ...
Koichi, Inoue +5 more
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Concentration of Heavy Metals by High-Speed Countercurrent Chromatography
Journal of Liquid Chromatography & Related Technologies, 1998Application of high-speed countercurrent chromatography (HSCCC) to the concentration of metal ions has been studied. The stationary phase, containing di(2-ethylhexyl) phosphoric acid (DEHPA) in n-heptane, was continuously fed into the column. The ppb level of metal ions in a 500 mL of the mobile phase was continuously concentrated into small volumes of
E. Kitazume, N. Sato, Y. Ito
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Journal of Separation Science
An efficient method for the continuous separation of Voriconazole enantiomers was developed using sulfobutyl ether-β-cyclodextrin (SBE-β-CD) as a chiral selector in high-speed countercurrent chromatography (HSCCC) with different types. The separation was
Xiao Sun +3 more
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An efficient method for the continuous separation of Voriconazole enantiomers was developed using sulfobutyl ether-β-cyclodextrin (SBE-β-CD) as a chiral selector in high-speed countercurrent chromatography (HSCCC) with different types. The separation was
Xiao Sun +3 more
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Journal of Separation Science
Acetylcholinesterase inhibitors from Evodia rutaecarpa were screened, prepared, and evaluated. To screen the lipophilic alkaloid active constituents in E. rutaecarpa, we improved and optimized an ultrafiltration system.
Jia-Qi Liang +7 more
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Acetylcholinesterase inhibitors from Evodia rutaecarpa were screened, prepared, and evaluated. To screen the lipophilic alkaloid active constituents in E. rutaecarpa, we improved and optimized an ultrafiltration system.
Jia-Qi Liang +7 more
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Separation of heavy metals by high-speed countercurrent chromatography
Analytical Chemistry, 1993Separation of heavy metal elements such as Co, Cu, Fe(II),Fe(III), Mg, and Ni was performed with a high-speed CCC coil planet centrifuge equipped with a multilayer coil. The two-phase solvent systems used for the separation were composed of n-heptane containing bis(2-ethylhexyl) phosphoric acid (stationary phase) and diluted citric acid (mobile phase),
Eiichi. Kitazume +3 more
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