期刊
FOOD CHEMISTRY
卷 78, 期 2, 页码 255-260出版社
ELSEVIER SCI LTD
DOI: 10.1016/S0308-8146(02)00115-2
关键词
capillary electrophoresis; electrochemical detection; trans-Resveratrol; wine; Polygonum cuspidatum Sied. et Zucc.; Zijin capsule
A method based on capillary electrophoresis with electrochemical detection (CE-ED) was developed for the determination of trans-Resveratrol in wines, Chinese medicinal herb Polygonum cuspidatum Sied. et Zucc., and Zijin capsule. The effects of some important factors such as injection time, and applied potential to working electrode were investigated. Operated in a wall-jet configuration, a 300 mum diameter carbon-disk electrode was used as the working electrode, which exhibits good response at +0.85 V (vs. SCE) for trans-Resveratrol. Linearity was obtained in the concentration range from 1.0 x 10(-4) to 5.0 x 10(-7) g/ml. The detection limit (S/N = 3) was 5.96 x 10(-8) g/ml. This proposed method has been successfully applied to analyze several actual samples with satisfactory assay results. (C) 2002 Elsevier Science Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据