Determination of flavonoids in Plumula Nelumbini by micellar electrokinetic capillary electrophoresis with electrochemical detection.

Cheng-Huai Geng, Wei-Yu Wang, Miao Lin, Jian-Nong Ye
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Abstract

A simple and efficient method based on micellar electrokinetic capillary electrophoresis (MECC) with electrochemical detection for the determination of catechin, rutin, hyperin, and kaempferol in Plumula Nelumbini is described. Under optimum conditions, all analytes were well separated within 20 min at a separation voltage of 16 kV in a 60-mmol/L borate running buffer (pH 8.0) containing 20 mmol/L sodium dodecyl sulfate (SDS). The current response was linear over two orders of magnitude with detection limits (S/N = 3) ranging from 6.90 x 10(-8) g/mL to 1.30 x 10(-7) g/mL for all analytes. This work provides a useful method for the analysis of Plumula Nelumbini.

胶束电动毛细管电泳-电化学检测法测定莲心中黄酮类化合物含量。
建立了胶束电动毛细管电泳-电化学检测法测定莲子中儿茶素、芦丁、金丝桃苷和山奈酚的方法。在最佳条件下,在含有20 mmol/L十二烷基硫酸钠(SDS)的60 mmol/L硼酸盐流动缓冲液(pH 8.0)中,在16 kV的分离电压下,所有分析物在20 min内得到良好的分离。当前响应在两个数量级以上呈线性,检测限(S/N = 3)范围为6.90 × 10(-8) g/mL至1.30 × 10(-7) g/mL。本工作为莲花的成分分析提供了一种有效的方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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