丙烯醛的极谱法测定  

Determination of Acrolein by Polarography

作　　者：张利华[1] 韦进宝[1] 肖玫[1] 

机构地区：[1]武汉大学,武汉430072

出　　处：《上海环境科学》1999年第3期142-143,共2页Shanghai Environmental Sciences

摘　　要：丙烯醛在酸性介质中可与硫酸联氨发生反应,其产物可在导数示波极谱仪上观察到一波形好、灵敏度高的吸附还原波,峰电位为-0.67v(vs.SCE)。其二阶导数峰高与浓度在1.0×10^(-4)～1.0×10^(-7)mol/L范围内呈良好的线性关系,检测下限为5.0×10^(-8)mol/L。该方法用于测有机合成厂废水中的丙烯醛含量取得满意结果。Acrolein can react with hydrazine sulfate in the acid medium. Reaction products can reduce at the mercury electrode with a sensitive adsorptive wave [Ep = -0.67v(vs.SCE)]. The concentration of acrolein is linear with peak current in the range of 1.0 × 10-4-1.0×10-7mol/L. The detection limit is 5.0 × 10-8mol/L. This method can be used to determine the concentration of acrolein in wastewater. The behaviour of polarographic wave has been studied and the mechanism of electrode reaction was explored.

关 键 词：丙烯醛 废水 极谱分析 水质监测 

分 类 号：X832.02[环境科学与工程—环境工程]