A study of HPLC separation and spectrophotometric and voltammetric detection of 4′-substituted derivatives of 3-carboxy-4-hydroxy-6-acetylaminoazobenzene

1997 ◽  
Vol 358 (4) ◽  
pp. 493-499 ◽  
Author(s):  
Jir˘í Barek ◽  
Josef Cvac˘ka ◽  
Jir˘í Zima
Keyword(s):  
Hplc Separation ◽  
Voltammetric Detection ◽  
Derivatives Of

A study of HPLC separation and spectrophotometric, polarographic and voltammetric detection of 4-substituted derivatives of N-nitroso-N-methylaniline

1994 ◽  
Vol 350 (12) ◽  
pp. 678-683 ◽  
Author(s):  
Jiří Barek ◽  
Pham Tuan Hai ◽  
Věra Pacáková ◽  
Karel Štulík ◽  
Ivana Švagrová ◽  
...  
Keyword(s):  
Hplc Separation ◽  
Voltammetric Detection ◽  
Derivatives Of

HPLC separation of hydrogenated derivatives of buckminsterfullerene

1998 ◽  
Vol 48 (1-2) ◽  
pp. 59-64 ◽  
Author(s):  
I. Bucsi ◽  
P. Szabó ◽  
R. Aniszfeld ◽  
G. K. Surya Prakash ◽  
G. A. Olah
Keyword(s):  
Hplc Separation ◽  
Derivatives Of

scholarly journals Characterization of Purified Red Cabbage Anthocyanins: Improvement in HPLC Separation and Protective Effect against H2O2-Induced Oxidative Stress in HepG2 Cells

Molecules ◽  
2018 ◽  
Vol 24 (1) ◽  
pp. 124 ◽  
Author(s):  
Sheng Fang ◽  
Fubin Lin ◽  
Daofeng Qu ◽  
Xianrui Liang ◽  
Liping Wang
Keyword(s):  
Oxidative Stress ◽  
Hepg2 Cells ◽  
Antioxidant Activities ◽  
Hplc Separation ◽  
Column Temperature ◽  
Red Cabbage ◽  
Chemical Profiles ◽  
Derivatives Of ◽  
Intracellular Oxidative Stress

In this study, the chemical profiles and antioxidant activities of red cabbage anthocyanin (RCA)-enriched extract are evaluated. The effects of column temperature on the HPLC resolution of the RCAs are studied. The HPLC resolutions became better as the column temperature increased from 20 °C–45 °C. An optimized HPLC condition was achieved at 45 °C and used for the quantification and qualification of the RCAs. The anthocyanins in the enriched powder are all derivatives of cyanidin (268 ± 2 μg/mg), mainly with 19% nonacylated, 51% monoacylated, and 31% diacylated structures with ferulic, sinapic, p-coumaric, and caffeic acids characterized by HPLC-MS. The RCA extracts markedly reduced intracellular oxidative stress production by H2O2 on HepG2 cells and consequently ameliorated cell apoptosis and improved viability. The analytical method and cellular antioxidant activity demonstration of the RCAs will greatly facilitate their functional applications.

HPLC separation and determination ofN-trinitrophenyl derivatives of amino acids and peptides

1983 ◽  
Vol 6 (3) ◽  
pp. 158-160 ◽  
Author(s):  
S. V. Vitt ◽  
M. M. Vorob'ev ◽  
E. A. Paskonova ◽  
M. B. Saporovskaya
Keyword(s):  
Amino Acids ◽  
Hplc Separation ◽  
Derivatives Of

Micro HPLC Separation of 3,5-Dinitrobenzoyl Derivatives of Cardiac Glycosides and Their Metabolites

1983 ◽  
Vol 21 (11) ◽  
pp. 495-499 ◽  
Author(s):  
Y. Fujii ◽  
R. Oguri ◽  
A. Mitsuhashi ◽  
M. Yamazaki
Keyword(s):  
Cardiac Glycosides ◽  
Hplc Separation ◽  
Derivatives Of ◽  
Micro Hplc
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