Simultaneous determination of total specific migration limit of seven benzene polycarbonic acids and their derivatives in food simulants by high performance liquid chromatography-ultraviolet detection

2015 ◽  
Vol 33 (8) ◽  
pp. 856
Author(s):  
Jianling WANG ◽  
Xiaofeng XIAO ◽  
Tong CHEN ◽  
Tingfei LIU ◽  
Jun HE ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Simultaneous Determination ◽  
High Performance ◽  
Ultraviolet Detection ◽  
Food Simulants ◽  
Migration Limit

scholarly journals Simultaneous Determination of Nitroimidazole Residues in Honey Samples by High-Performance Liquid Chromatography with Ultraviolet Detection

2007 ◽  
Vol 90 (3) ◽  
pp. 872-878 ◽  
Author(s):  
Jinhui Zhou ◽  
Jianzhong Shen ◽  
Xiaofeng Xue ◽  
Jing Zhao ◽  
Yi Li ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Solid Phase Extraction ◽  
Simultaneous Determination ◽  
High Performance ◽  
Solid Phase ◽  
Phase Extraction ◽  
Ultraviolet Detection ◽  
Ultraviolet Detector

Abstract A rapid and sensitive high-performance liquid chromatography (LC) method was developed for the simultaneous determination of metronidazole (MNZ), dimetridazole (DMZ), ronidazole (RNZ), tinidazole (TNZ), and 2-hydroxymethyl-1-methyl-5-nitroimidazole (HMMNI) in honey. After extraction with ethyl acetate and evaporation, the residue containing the nitroimidazoles was dissolved in ethyl acetatehexane and subjected to solid-phase extraction cleanup by amine extraction columns. The effluent was evaporated to dryness, and residues were dissolved and determined by LC with an ultraviolet detector set at 315 nm. The limits of detection were 1.02.0 ng/g for MNZ, DMZ, RNZ, TNZ, and HMMNI in honey. Average recoveries ranged from 71.5101.4% in honey fortified at 10, 20, 50, and 100 ng/g. The method was validated for the analysis of real honey samples.

Simultaneous determination ofl-ascorbic acid and dehydroascorbic acid in human plasma

2015 ◽  
Vol 7 (21) ◽  
pp. 9206-9210 ◽  
Author(s):  
Yunjeong Kim ◽  
Na Ha ◽  
Min-Gul Kim
Keyword(s):  
Ascorbic Acid ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Simultaneous Determination ◽  
Human Plasma ◽  
High Performance ◽  
Accurate Determination ◽  
Dehydroascorbic Acid ◽  
Ultraviolet Detection

A method combining high-performance liquid chromatography with ultraviolet detection (HPLC-UV) was developed and validated for the accurate determination ofl-ascorbic acid (AA) and dehydroascorbic acid (DHAA) concentrations in human plasma.

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