微分脉冲伏安法同时测定3,4-二氢-2-羟基喹(口恶)啉和2-羟基喹(口恶)啉及研究其电极反应性质  

SIMULTANEOUS DETERMINATION OF 3,4-DIHYDRO-2-HYDROXYQUINOXALINE AND 2-HYDROXYQUINOXALINE USING DIFFERENTIAL PULSE VOLTAMMETRY

作　　者：刘快之[1] 陈伯森[1] 

机构地区：[1]河南大学化学系

出　　处：《分析化学》1989年第2期132-135,共4页Chinese Journal of Analytical Chemistry

摘　　要：以玻碳电极为工作电极,在pH为6的甲醇-B.R.缓冲溶液的混合溶液中,3,4-二氢-2-羟基喹噁啉在+0.48V有一氧化峰,2-羟基喹噁啉在-0.98V有一还原峰,峰高与相应的电活性物质浓度分别在2.8+10^(-6)—8.0×10^(-5)mol/L和8.0×10^(-6)—6.4×10^(-4)mol/L范围内有良好的线性关系。在此条件下,对样品中二者含量进行了同时测定。In the methanol-Britton Robinson solution (pH6), using a glassy carbon as the working electrode, 3,4-dihydro-2-hydroxyquinoxaline shows a well defined anodic peak at +0.48V (vs Ag-AgCl) and 2-hydroxyquinoxaline shows a cathodic peak at -0.98 V by differenital pulse voltammetry. Under the conditions recommended above, the two compounds containing in a sample were determined simultaneously.

关 键 词：羟基喹Wu啉 伏安法 二氢 电极 

分 类 号：O626.325[理学—有机化学]