Electroanalytical methodologies for the determination of triazine herbiacides by square wave voltammetry and deconvolution techniques

Quimica nova

Avaca, Luis A.¹  Garbellini, Gustavo S.¹  Pedrosa, Valber A.¹  Salazar-Banda, Giancarlo R.¹ 

[1] Universidade de São Paulo, São Carlos, Brasil

关键词: triazines;    square wave voltammetry;    mercury electrode.;   

DOI  :  10.1590/S0100-40422007000800039

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

This work describes the development of electroanalyticalmethodologies for the determination of atrazine, ametrine and simazine by squarewave voltammetry on a mercury electrode. For pure atrazine and pure ametrine,the detection limits (DL) were 3.7 and 4.3 µg L-1,respectively, while they increased to 4.8 and 6.5 µgL-1 in the presence of 3.0 x 10-6 mol L-1 ofthe other component (a mathematical deconvolution program was used in the mixturecases). The voltammetric response for simazine could not be separated from thatof atrazine and measurements were carried out only in pure simazine solutions(DL: 7.5 µg L-1).

【 授权许可】

CC BY