Determination of Omethoateby Cathodically SweepingOscillopolarography

作     者：Wang Yu Sun Yuansi Huang Junhua Zhang Wuming Zhou Xingyao(College of Chemistry, Wuhan University, Wuhan 430072,China) 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报（自然科学英文版）)

年 卷 期：1998年第3卷第4期

页      面：469-472页

学科分类：08[工学] 080101[工学-一般力学与力学基础] 0801[工学-力学（可授工学、理学学位）] 

主　　题：omethoate alkaline hydrolysis oscillopolarography organophosphorous pesticide 

摘      要：Determination of omethoate by cathodically sweeping oscillopolarography is described. The product of the alkaline hydrolysis exhibited a sensitive second derivative wave at ?0.50 V (vs. SCE) in a 1.0 ×10?5mol/L sodium dodecylbenzene sulfonate (SDBS)+0.1 mol/L HAc-NaAc (pH 4.0) buffer. The peak current was linearly proportional to the concentration of omethoate in the range from 6.4×10?7 to 5.1×10?5 mol/L. The detection limit is 2.0×10?7 mol/L with the relative standard derivation (RSD) of 3.5%. The hydrolysis procedure and the electrode reaction were studied by voltammetry.