Metodologias eletroanalíticas para a determinação de herbicidas triazínicos por voltametria de onda quadrada e técnicas de deconvolução

Química Nova

Gustavo S. Garbellini¹  Valber A. Pedrosa¹  Giancarlo R. Salazar-banda¹  Luis A. Avaca¹ 

[1] ,Universidade de São Paulo Instituto de Química de São Carlos São Carlos SP ,Brasil

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

DOI  :  10.1590/S0100-40422007000800039

来源: SciELO

【 摘 要 】

This work describes the development of electroanalytical methodologies for the determination of atrazine, ametrine and simazine by square wave 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 µg L-1 in the presence of 3.0 x 10-6 mol L-1 of the other component (a mathematical deconvolution program was used in the mixture cases). The voltammetric response for simazine could not be separated from that of atrazine and measurements were carried out only in pure simazine solutions (DL: 7.5 µg L-1).

【 授权许可】

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