乙酸乙酯萃取单宁在玻碳电极上示差脉冲伏安研究  

Extracted Tannic Acide from Ethyl Acetate and Studied by Differential Pulse Voltammetry on a GC Electrode

作　　者：王丽华[1] 肖伟洪 

机构地区：[1]江西科技师范学院应用物理系,南昌330013 [2]江西省有机功能分子重点实验室,南昌330013

出　　处：《江西化工》2006年第4期112-114,共3页Jiangxi Chemical Industry

基　　金：江西省教育厅资助课题(赣教财[2003]97号)

摘　　要：用乙酸乙酯对单宁进行纯化处理,研究了样品、在玻碳电极上示差脉冲伏安差异。实验结果:样品、萃取物、萃余物水溶液分别在0.40-0.386v出现氧化峰,萃取物1-0.4285g/L浓度范围内与其峰电流呈线性关系;同时进行了金缕梅植物单宁含量测定实验。Tannic acide is exacted from ethyl acetate, and residue aqueous solution were studied by different pulse voltammetry on a C;C eleetrede, the samples, extractivea and aqueoussolution had an oxidative wave at the Peak Potential of 0.4 - 0.386V, respectively. The Peak eta＇rent was linear with its concentration in the range of 10 - - 0.4285 g/L. Tannic aeide of hamamelis molls can be determined direcfly.

关 键 词：示差脉冲伏安法 单宁 萃取 金缕梅 

分 类 号：O657.1[理学—分析化学]