Development of a luminol-based chemiluminescence flow-injection method for the determination of dichlorvos pesticide

被引：54

作者：

Wang, JN

Zhang, C

Wang, HX

Yang, FZ

Zhang, XR ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China

[2] Cent Stn Prairie, Qing Hai 810001, Peoples R China

来源：

TALANTA | 2001年 / 54卷 / 06期

关键词：

chemiluminescence; flow inject analysis; dichlorvos pesticide; cyltrimethylammonium bromide;

D O I：

10.1016/S0039-9140(01)00388-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple, fast chemiluminescence (CL) flow-injection method based on the reaction of luminol with H2O2 in the presence of a cationic surfactant (cyltrimethylammonium bromide, CTMAB) has been described for the direct determination of dichlorvos pesticide (DDVP). Under the optimal conditions, the CL intensity was linear to the DDVP concentration in the range of 0.02-3.1 mug ml(-1) (r = 0.9998, n = 10). The relative standard deviation was 3.4% at 0.35 mug ml(-1) (n = 10), with a detection limit (3 sigma) of 0.008 mug ml(-1) DDVP. The possible reaction mechanism was also discussed. This method has been successfully applied to the determination of trace DDVP residue in vegetable sample and results have been compared with that of the UV method. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：1185 / 1193

页数：9

共 26 条

[1] Determination of organophosphorus and carbamate pesticides using a piezoelectric biosensor [J].