Results 81 to 90 of about 1,288 (154)

Purification of Flavonoids from Mulberry Leaves via High-Speed Counter-Current Chromatography

, 2019
In order to obtain high-purity flavonoid products, the extracts from mulberry leaves were separated and purified via high-speed counter-current chromatography (HSCCC).
Jun Zhang, Pian Zhang, Kang-Ling Zhu, Heng Zhang, Yan Wang, Yan Li   +5 more
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J. Liq. Chromatogr. Relat. Technol.

, 2007
Water soluble components are amajor part of active components of Salvia miltiorrhiza Bunge, a very important species of TCM, whose quality control is valuable.
Ouyang, Fan, Wang, Xiaolei, Gu, Ming
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Isolation and purification of four bioactive constituents from Alpinia officinarum Hance utilizing high-speed counter-current chromatography

, 2012
Galangal, the rhizome of Alpinia officinarum Hance (Chinese pinyin name: Gao-liang-jiang), is one of the most popular Chinese herbs that has extensive pharmacological effects.
Brown, Leslie, Tan, Daomei, Chen, Yuling, Chang, Dennis Hsu-Tung (R7407), Yang, Depo, Wang, Dongmei, Zhu, Longping, Tan, Xiong   +7 more
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An efficient method for the preparative isolation and purification of alkaloids from Gelsemium by using high speed counter-current chromatography and preparative HPLC

We established an efficient method using high-speed countercurrent chromatography (HSCCC) combined with preparative high-performance liquid chromatography (prep-HPLC) for isolating and purifying Gelsemium elegans (G. elegans) alkaloids.
Shi-Hao Zhu (18333778), Meng-Ting Zuo (18333781), Xue-Jiao Zhao (18333775), Zhao-Ying Liu (4279798), Ling-Ling Liang (18333772), Ying Lu (66401), Qi Tang (351973)   +6 more
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An Efficient Method for the Preparative Isolation and Purification of Flavonoid Glycosides and Caffeoylquinic Acid Derivatives from Leaves of Lonicera japonica Thunb. Using High Speed Counter-Current Chromatography (HSCCC) and Prep-HPLC Guided by DPPH-HPLC Experiments

, 2017
In this work, the n-butanol extract from leaves of Lonicera japonica Thunb. (L. japonica) was reacted with DPPH and subjected to a HPLC analysis for the guided screening antioxidants (DPPH-HPLC experiments). Then, nine antioxidants, including flavonoid
Heng Zhu, Feng Liu, Xiao Wang, Lei Wen, Jinhua Du, Shengbo Li, Daijie Wang, Ning Du   +7 more
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高速逆流色谱法分离纯化丹参并尝试制订中药指纹图谱

, 2003
用国产高速逆流色谱 (HSCCC)分离纯化中草药———丹参 ,选用正己烷 乙醇 水体系 ,固定相保留率达到78 8%。采用分步洗脱 ,3个产地丹参各分离得到 12个洗脱组分 ,经高效液相色谱仪和紫外光谱仪检测证明 3张HSCCC洗脱图谱中对应洗脱峰为同一组分。HSCCC洗脱图谱不包含非共有峰 ,并且对应洗脱峰保留时间的相对标准偏差RSD <3% ,符合国家标准关于制订指纹图谱方法学考察资料的技术参数。因此 ...
苏志国, 欧阳藩, 顾铭
core  

Separation of abietane-type diterpenoids from Clerodendrum kaichianum Hsu by high-speed counter-current chromatography using stepwise elution

, 2016
High-speed counter-current chromatography (HSCCC) was successfully used for the separation of abietane-type diterpenoids from the medicinal plant C. kaichianum, which were not separated in our previous study using preparative HPLC.
Huizhong Wang (115600), Maojun Xu (447937), Qin Zhu (537864), Qizhen Du (1697557), Mingfeng Xu (1916383)   +4 more
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Fingerprint Analysis of Cnidium monnieri (L.) Cusson by High-Speed Counter-Current Chromatography

, 2019
Cnidium monnieri (L.) Cusson is a popular Traditional Chinese Medicine (TCM) with a variety of bioactivities. However, there are some problems that have affected the development of Cnidium monnieri (L.) Cusson. At present, many methods have been reported
Xuemin Gao, Shuyi Zhang, Xuan Zhu, Xinmei Liu, Huayu Yang, Qing Chen, Xiaoxue Wu, Hua Song   +7 more
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Profiling the fatty acids from a strain of the microalgae Alexandrium tamarense by means of high-speed counter-current chromatographyand gas chromatography coupled with mass spectrometry

, 2013
tFatty acids of microalgae have been studied as potential chemotaxonomic markers, to reveal plausi-ble lipid phycotoxins or in the context of mass production of algal biofuels.
Schröder, Markus, Tillmann, Urban, Hammann, Simon, Schröder, Marcus, Vetter, Walter   +4 more
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Systematic Separation and Purification of Alkaloids from Euchresta tubulosa Dunn. by Various Chromatographic Methods

, 2019
High-speed countercurrent chromatography (HSCCC) and silica gel column chromatography were used to separate and purify alkaloids from Chinese herbal medicine Euchresta tubulosa Dunn.
Ai-Wen Dong, Wei-Xin Li, Huan Wang
core   +1 more source