敌敌畏催化过硼酸钠氧化联苯胺反应体系的研究及应用  

Studies on Dichlorvos Catalytic Oxidation of Benzidine by Sodium Perborate and Its Application

作　　者：母应锋[1] 杨明敏[1] 郑修文[1] 刘正才[1] 

机构地区：[1]南京农业大学理学院,南京210095

出　　处：《分析科学学报》2005年第3期249-252,共4页Journal of Analytical Science

基　　金：江苏省科技攻关项目(BE2002350)

摘　　要：利用敌敌畏(DDV)可以催化过硼酸钠(SPB)氧化联苯胺反应的特性,建立了测定DDV的单扫描极谱分析方法,此方法的灵敏度高,其对应的线性范围是3.0×10-9～7.5×10-6g/mL(R2=0.9992),检出限为1.0×10-9g/mL。方法用于测定植物样品中DDV的残留量,结果令人满意。另外,实验指出了DDV的催化作用,并研究了SPB联苯胺氧化产物的电极还原机理。A single-sweep polarography was described for the determination of the remains of the dichlorvos(DDV) with sodium perborate (SPB) and benzidine. The detection limit and the linear range were 1.0×10 -9 g/mL and 3.0×10 -9 ~7.5×10 -6 g/mL ( R 2 =0.999 2), respectively. The method has been used for the determination of residual DDV in plant with satisfactory results. The catalysis of DDV was demonstrated by the experimental results, and the mechanism of electrode reduction was also discussed in this paper.

关 键 词：敌敌畏 过硼酸钠 联苯胺 单扫描极谱法 

分 类 号：O657.14[理学—分析化学] TQ453.22[理学—化学]