岩白菜素的电化学行为及其测定  

Electrochemical behavior of bergenin and its determination

作　　者：陈敬华[1] 张静[2] 庄茜[1] 罗红斌[1] 李光文[1] 林新华[1] 

机构地区：[1]福建医科大学药学院,福州350004 [2]福建卫生职业技术学院,福州350101

出　　处：《分析试验室》2008年第3期30-33,共4页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金(20675015);福建省科技重点(2006I0016);福建省卫生厅青年科研基金(2005123);福建省教育厅科研基金(2005K051)项目资助

摘　　要：采用循环伏安法研究岩白菜素在电极上的电化学行为并建立了差示脉冲伏安法对其测定的电化学分析方法。在pH 6.0 PBS缓冲液中,氧化峰电流与岩白菜素的浓度在2.0×10^-7-1.2×10^-6mol/L范围内呈良好的线性关系,检出限为2.0×10^-8mol/L。玻碳电极可有效消除样品中其它组分对岩白菜素测定的干扰,已用于实际样品中岩白菜素的直接测定。The electrochemical behavior of bergenin was investigated by voltammetry at a glassy carbon electrode. And a differential pulse voltammetric method for the determination of Bergenin was developed. In pH 6.0 PBS buffer solution, the relationship between the oxidation peak current and the concentration of bergenin was linear in the range of 2.0 × 10^-7 - 1.2 × 10^-6 mol/L. The detection limit was estimated as 2.0 × 10^-8 mol/L. The interference of other components in the preparation could be efficiently eliminated by the glassy carbon electrode. And this method can be used for the determination of bergenin in real samples with satisfactory results.

关 键 词：岩白菜素 玻碳电极 循环伏安法 

分 类 号：O657.1[理学—分析化学]