Separation and determination of flavonoids in three traditional chinese medicines by capillary electrophoresis with amperometric detection

2016 ◽  
Vol 39 (7) ◽  
pp. 1357-1362 ◽  
Author(s):  
Wei Wang ◽  
Ping Lin ◽  
Lihong Ma ◽  
Kaixuan Xu ◽  
Xiuli Lin
Keyword(s):  
Capillary Electrophoresis ◽  
Amperometric Detection ◽  
Traditional Chinese Medicines ◽  
Chinese Medicines

Determination of Effective Ingredients in Compound Sulfamethoxazole Tablets by Capillary Electrophoresis with Amperometric Detection

2008 ◽  
Vol 36 (3) ◽  
pp. 292-296 ◽  
Author(s):  
Chu Qing-Cui ◽  
Tian Xiu-Hui ◽  
Jiang Lian-Mei ◽  
Zhou Wen-Jun ◽  
Ye Jian-Nong
Keyword(s):  
Capillary Electrophoresis ◽  
Amperometric Detection

Analysis of Synthetic Antioxidant in Food by Capillary Electrophoresis

2011 ◽  
Vol 361-363 ◽  
pp. 1855-1858 ◽  
Author(s):  
Qian Xiang ◽  
Ying Gao
Keyword(s):  
Capillary Electrophoresis ◽  
Amperometric Detection ◽  
Peak Height ◽  
Butylated Hydroxyanisole ◽  
Applied Potential ◽  
Synthetic Antioxidant ◽  
Separation Potential ◽  
Relative Standard ◽  
Capillary Electrophoretic

A capillary electrophoretic assay for determining synthetic antioxidant butylated hydroxyanisole in food has been developed. The extraction with 70% (v/v) methanol quantitatively extracted synthetic antioxidant. The separation was carried out by CZE using phosphate at a separation potential of 18 kV. Amperometric detection was achieved with an applied potential of 0.60 V. A linear relationship between the peak height and the concentration of the analyte was found in the range 1.8-180 µg/mL for BHA, with correlation coefficient of 0.994. The relative standard deviations of migration time and peak height were 0.19 and 5.3 %, respectively. The method developed was successfully applied for the determination of synthetic antioxidant butylated hydroxyanisole in food. Recovery of butylated hydroxyanisole was 93%.

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