Results 231 to 240 of about 111,518 (250)

Screening and isolating potential α-glucosidase inhibitors from Rhizoma Coptidis by ultrafiltration LC-PDA-ESI/MS combined with high-speed countercurrent chromatography and reverse-phase medium-pressure liquid chromatography

Medicinal Chemistry Research, 2017
Rhizoma Coptidis is an alkaloid-rich herbal drug used in Chinese herbal medicine. Currently, conventional methods for screening and isolating alkaloids are labor-intensive and time-consuming. In the present study, ultrafiltration liquid chromatography with photodiode array detection coupled to electrospray ionization tandem mass spectrometry ...
Ying Tang, Senlin Li, Sainan Li, Xiaojing Yang, Yao Qin, Chunming Liu, Yuchi Zhang   +6 more
openaire   +1 more source

Rapid purification of alkylamides from Zanthoxylum bungeanum by medium-pressure liquid chromatography and the establishment of a numbness prediction model using an electronic tongue

Analytical Methods
In the present study, an efficient and rapid method for the preparation of high-purity typical alkylamides from Zanthoxylum bungeanum (Z. bungeanum) pericarps using medium-pressure liquid chromatography (MPLC) was developed.
Pengxiang Wang, Zhuoya Zhang, Kaikai Li, Chunmei Li   +3 more
openaire   +2 more sources

MEDIUM PRESSURE LIQUID CHROMATOGRAPHY

2000
K. Hostettmann, C. Terreaux
openaire   +1 more source

Targeted isolation of 1,1-diphenyl-2-picrylhydrazyl inhibitors from Saxifraga atrata using medium- and high- pressure liquid chromatography combined with online high performance liquid chromatography–1,1-diphenyl-2- picrylhydrazyl detection

Journal of Chromatography A, 2021
Yurong Du, Denglang Zou, Qilan Wang
exaly  

Combination of Medium- and High-Pressure Liquid Chromatography for Isolation of L-tryptophan (Q-marker) from Medicago sativa Extract

Separations, 2022
Qilan Wang, Jun Dang, Ronghua Ma
exaly  

Front Cover: Preparative isolation of antioxidative gallic acid derivatives from Saxifraga tangutica using a class separation method based on medium‐pressure liquid chromatography and reversed‐phase liquid chromatography

Journal of Separation Science, 2021
Jun Dang, Qi Wang, Qilan Wang, Chen Yuan, Gang Li, Tengfei Ji   +5 more
openaire   +1 more source

Preparative isolation of 1,1‐diphenyl‐2‐picrylhydrazyl inhibitors from Ribes himalense using medium‐pressure and two‐dimensional reversed‐phase/reversed‐phase liquid chromatography guided by an online HPLC‐1, 1‐diphenyl‐2‐picrylhydrazyl assay

Journal of Separation Science, 2021
Lijuanmei Mei, Zenggen Liu, Chuang Liu   +2 more
exaly  

Seperation and identification of bioactive compounds in Lepidium meyenii (Maca) based on the combination of medium-pressure liquid chromatography and preparative HPLC

Planta Medica, 2015
D Li, Y Shao, Z Shen, W Yan
openaire   +1 more source

PREPARATIVE ISOLATION AND PURIFICATION OF FLAVONE C-GLYCOSIDES FROM THE LEAVES OF FICUS MICROCARPA L.f BY MEDIUM-PRESSURE LIQUID CHROMATOGRAPHY, HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY, AND PREPARATIVE LIQUID CHROMATOGRAPHY

Journal of Liquid Chromatography and Related Technologies, 2010
Yoichirô Itô, Yong Liang, Tianyou Zhang   +2 more
exaly  

Nonelectrolytic liquid mixture studies by medium pressure gas-liquid chromatography. Infinite dilution activity coefficients of C5-C8 hydrocarbons in 1-n-alkylbenzenes

The Journal of Physical Chemistry, 1970
Brian W. Gainey, Robert L. Pecsok
openaire   +1 more source