Results 41 to 50 of about 8,771,743 (176)

Isolation and Purification of Oridonin from the Whole Plant of Isodon rubescens by High-Speed Counter-Current Chromatography

Molecules, 2011
Semi-preparative high-speed counter-current chromatography (HSCCC) was successfully used for isolation and purification of oridonin from Isodon rubescens by using a two-phase-solvent system composed of n-hexane-ethyl acetate-methanol-water (2.8:5:2.8:5 ...
ChunYue Yu, Sen Li, Weili Yang, Jing Wei, Jing Wang, Chenghua Han, Yuhua Bai, Fa He   +7 more
doaj   +1 more source

Separation and purification of hydrolyzable tannin from Geranium wilfordii Maxim by reversed-phase and normal-phase highspeed counter-current chromatography

, 2010
Three hydrolyzable tannins, geraniin, corilagin and gallic acid, main active components of Geranium wilfordii Maxim, have been separated and purified in one-step by both reversed-phase and normal-phase high-speed counter-current chromatography.
Wang, Changhai, Gu, M, Su, Zhiguo, Gu, Ming, Liu, Dan, Xing, Siliang   +5 more
core   +1 more source

Preparative Isolation of Seven Diterpenoid Alkaloids from Aconitum coreanum by pH-Zone-Refining Counter-Current Chromatography

Molecules, 2014
The aim of this paper was to seek an efficient method to preparative separation of alkaloid compounds from Aconitum coreanum (Guanbaifu), a well-known traditional Chinese medicinal plant for heart disease.
Xueyong Wang, Xikai Shu, Xiao Wang, Jinqian Yu, Feng Jing   +4 more
doaj   +1 more source

Preparative Separation of Phenolic Compounds from Halimodendron halodendron by High-Speed Counter-Current Chromatography

Molecules, 2010
Three phenolic compounds, p-hydroxybenzoic acid (1), isorhamnetin-3-O-β-D-rutinoside (2), and 3,3'-di-O-methylquercetin (5), along with a phenolic mixture were successfully separated from the ethyl acetate crude extract of Halimodendron halodendron by ...
Zhu Yu, Jianguo Han, Ligang Zhou, Qi Wang, Jianglin Zhao, Haifeng Gao, Jihua Wang, Fuyu Yang   +7 more
doaj   +1 more source

Preparative Isolation of Three Anthraquinones from Rumex japonicus by High-Speed Counter-Current Chromatography

Molecules, 2011
Three anthraquinones—emodin, chrysophanol, and physcion—were successfully purified from the dichloromethane extract of the Chinese medicinal herb Rumex japonicus by high-speed counter-current chromatography (HSCCC).
Shuying Guo, Bo Feng, Ruonan Zhu, Jiankang Ma, Wei Wang   +4 more
doaj   +1 more source

Facilitating insight into a simulation model using visualization and dynamic model previews [PDF]

, 2012
This paper shows how model simplification, by replacing iterative steps with unitary predictive equations, can enable dynamic interaction with a complex simulation process.
Cribbin, T, de Folter, J
core   +1 more source

Separation of natural polar substances by reversed-phase high-performance liquid chromatography, centrifugal thin-layer chromatography and droplet counter-current chromatography

, 1985
Reversed-phase high-performance liquid chromatography, centrifugal thin-layer chromatography and droplet counter-current chromatography are complementary, highly efficient techniques for isolating natural, very polar, substances from plant sources.
Luisella Verotta, F. Orsini, Fulvia Orsini, L. Verotta   +3 more
core   +1 more source

Counter-Current Chromatography Enables Use of Green Solvents for Productive Peptide Purification Processes

Separations
Peptide purification by preparative reversed-phase liquid chromatography remains one of the most resource-intensive stages in synthetic peptide manufacturing. Production processes commonly rely on acetonitrile/trifluoroacetic acid (ACN/TFA) mobile phases
Rosella Prestia, Damian Hauri, Mattia Sponchioni, Sebastian Vogg, Thomas Müller-Späth   +4 more
doaj   +1 more source

Preparative Purification of Anti-Proliferative Diarylheptanoids from Betula platyphylla by High-Speed Counter-Current Chromatography

Molecules, 2016
A simple and rapid method using high-speed counter-current chromatography (HSCCC), along with bioassay-guided fractionation based on the anti-proliferative activity against renal and colon cancer cells, has been developed for the preparative separation ...
Namki Cho, Hyun Woo Kim, Tae Bum Kim, Tanya T. Ransom, John A. Beutler, Sang Hyun Sung   +5 more
doaj   +1 more source

Isolation Of Chavibetol From Essential Oil Of Pimenta Pseudocaryophyllus Leaf By High-speed Counter-current Chromatography.

, 2015
Counter-current chromatography (CCC) was used to isolate chavibetol from the essential oil of leaves of Pimenta pseudocaryophyllus (Gomes) Landrum. Chavibetol was obtained in high purity (98%) and mass recovery (94.4%).
dos Santos, Bruna C B, da Silva, Júlio César T, Barata, Lauro E S, Leitão, Gilda G, Guerrero, Palimécio G   +4 more
core   +1 more source