陈皮甙的单扫示波极谱法研究  

Single sweep Oscillopolarographic Study of Hesperidin

作　　者：胡劲波[1] 范玉芬[1] 龚兰新[1] 李启隆[1] 

机构地区：[1]北京师范大学化学系

出　　处：《分析测试学报》1997年第2期10-13,共4页Journal of Instrumental Analysis

基　　金：国家自然科学基金

摘　　要：在０．１ｍｏｌ／ＬＨＣｌ溶液中，陈皮甙在单扫示波极谱仪上有一灵敏的导数峰，其峰电位Ｅｐ＝－１．２２Ｖ（ｖｓ．ＳＣＥ）。峰高与陈皮甙浓度在１．０×１０－６～３．０×１０－５ｍｏｌ／Ｌ范围内成线性关系，其相关系数为０．９９５。用于橙皮中陈皮甙的测定，得到满意的结果。本实验用线性扫描和循环伏安法等手段研究体系的伏安行为，特别是吸附性。实验表明。A derivative peak of hesperidin in 0 1 mol/L HCl solutions can be observed by single sweep oscillopolarography.The peak potential E p equals to -1.22V( vs .SCE).The peak current is directly proportional to the concentration of hesperidin over the range of 1.0×10 -6 ～3.0×10 -5 mol/L with a recurrence coefficient of 0.995.The detection limit is 5.0×10 -7 mol/L.The method has been applied successfully to the determination of hesperidin in Chinese crude drugs.The electrochemical behavior of hesperidin was also studied by linear sweep oscillopolarography and cyclic voltammetry.It has been shown that the wave is an irreversible adsorption wave.

关 键 词：陈皮甙 单扫示波极谱法 伏安行为 橙皮甙 中药 

分 类 号：R284.1[医药卫生—中药学]