Voltammetric determination of mesotrione at hanging mercury drop electrode

被引:20
作者
Erdogdu, G. [1 ]
Titretir, S. [1 ]
机构
[1] Inonu Univ, Fac Arts & Sci, Dept Chem, TR-44069 Malatya, Turkey
关键词
mesotrione; voltammetric behavior (HMDE; CV and DPV); pesticide analysis;
D O I
10.1134/S106193480708014X
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A study of the electrochemical reduction of the mesotrione pesticide on a hanging mercury drop electrode (HMDE) was performed as a basis for the development of a sensitive analytical method for natural samples. The electrochemical characteristics of herbicide mesotrione dissolved in a phosphate buffer (pH 7.0) have been determined by means of electrochemical techniques such as cyclic voltammetry (CV) and differential pulse voltammetry (DPV) over a wide range of pH from 2.0 to 10.0. The experimental parameters, such as electrolyte type and its pH, pulse amplitude, and scan rate were optimized. The method was applied to the determination of the pesticide in a spiked soil samples. Using this method, a linear calibration curve for mesotrione was obtained up to the 0.1 mu M range in pH 7 phosphate buffer solution with a detection limit (S/N = 3) of 50 nM. The method can be applied successfully to the determination of mesotrione in soils.
引用
收藏
页码:777 / 780
页数:4
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