Results 71 to 80 of about 8,771,743 (176)

Characterization of Tyrosinase Inhibitors in Dryopteris crassirhizoma Rhizome Using a Combination of High-Speed Counter-Current Chromatography, Affinity-Based Ultrafiltration, and Liquid Chromatography-Tandem Mass Spectrometry. [PDF]

Front Nutr, 2022
Wang Z, Wang N, Han D, Yan H.
europepmc   +1 more source

An overview of recent progress in solvent systems, additives and modifiers of counter current chromatography

, 2018
Solvent systems are critical to counter current chromatography (CCC). Appropriate additives and modifiers can be used to improve the separation efficiency of CCC.
Qing Sun, Yanjuan Liu, Shaofen Guo, Pengqun Kuang, Tao Xue, Haigang Li   +5 more
core   +1 more source

Bioactivity-Guided High Performance Counter-Current Chromatography and Following Semi-Preparative Liquid Chromatography Method for Rapid Isolation of Anti-Inflammatory Lignins from Dai Medicinal Plant, Zanthoxylum acanthopodium var. timbor. [PDF]

Molecules, 2023
Fan QF, Zhou L, Gongpan PC, Lu CL, Chang H, Xiang X.   +5 more
europepmc   +1 more source

PREPARATIVE SEPARATION OF ISOQUINOLINE ALKALOIDS FROM PHELLODENDRI CORTEX BY PH-ZONE-REFINING COUNTER-CURRENT CHROMATOGRAPHY

Química Nova
pH-Zone-refining counter-current chromatography (PZRCCC) was successfully used for preparative separation isoquinoline alkaloids from Phellodendri Cortex.
Daijie Wang, Shanming Tian, Li Cui, Huijiao Yan, Xiangyun Song, Yuguo Liu, Fei Xu, Junjian Ma   +7 more
doaj   +1 more source

Combined Ultrahigh Pressure Extraction and High-Speed Counter-Current Chromatography for Separation and Purification of Three Glycoside Compounds from Dendrobium officinale Protocorm. [PDF]

Molecules, 2021
Zhang W, Zhang Y, Wang J, Duan W, Liu F.
europepmc   +1 more source

Synthesis of medronic acid monoesters and their purification by high-performance countercurrent chromatography or by hydroxyapatite

Beilstein Journal of Organic Chemistry, 2016
We achieved the synthesis of important medronic acid monoalkyl esters via the dealkylation of mixed trimethyl monoalkyl esters of medronic acid. Two methods were developed for the purification of medronic acid monoesters: 1) small scale (10–20 mg ...
Elina Puljula, Jouko Vepsäläinen, Petri A. Turhanen   +2 more
doaj   +1 more source

H₂O-Induced Hydrophobic Interactions in MS-Guided Counter-Current Chromatography Separation of Anti-Cancer Mollugin from Rubia cordifolia. [PDF]

Molecules, 2021
Zeng L, Xu T, Meng J, Wu D, Wu S.
europepmc   +1 more source

Separation of triterpenoid saponins from the root of Bupleurum falcatum by counter current chromatography: The relationship between the partition coefficients and solvent system composition

, 2018
Bupleurum falcatum; Counter current chromatography; Saikosaponins; Solvent ...
서은경
core   +1 more source

Preparative isolation and purification of lutein from the microalga Chlorella vulgaris by high-speed counter-current chromatography

, 2001
High-speed counter-current chromatography (HSCCC) was applied to the isolation and purification of lutein from microalgae. Analytical HSCCC was used for the preliminary selection of a suitable solvent system composed of n-hexane-ethanol-water (4:3:1, v/v)
Fu-Quan Yang, Guo-Qing Xu, Xu, GQ, Feng Chen, Li, HB, Tian-You Zhang, Yang, FQ, Hua-Bin Li, Chen, F, Zhang, TY   +9 more
core   +1 more source

A Simple and Efficient Two-Dimensional High-Speed Counter-Current Chromatography Linear Gradient and Isocratic Elution Modes for the Preparative Separation of Coumarins from Roots of Toddalia asiatica (Linn.) Lam. [PDF]

Molecules, 2021
Ma W, Ali I, Li Y, Hussain H, Zhao H, Sun X, Xie L, Cui L, Wang D.   +8 more
europepmc   +1 more source