Ultrasound potentialities on the determination of the pesticide carbaryl using diamond electrodes

Quimica nova

Salazar-Banda, Giancarlo R.¹  Avaca, Luis A.²  Garbellini, Gustavo S.² 

[1] Universidade Tiradentes, Aracaju, Brasil;Universidade de São Paulo, São Carlos, Brasil

关键词: boron-doped diamond;    sonoelectroanalysis;    food samples.;   

DOI  :  10.1590/S0100-40422010001000039

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The potentialityof the use of ultrasound radiation in association with a boron-doped diamondelectrode was evaluated on the voltammetric determination of the pesticide carbaryl.Improvements in the sensitivity, limit of detection and reproducibility of themeasurements were observed due to both, the enhancement of mass transport andthe cleaning of the electrode surface provided by ultrasound. Satisfactory recoverylevels for carbaryl in pure water (96-98%) and pineapple juice (89-92%) forquiescent and sonovoltammetric methodologies were obtained. These methodologiescan be alternative tools for the analyses of pesticides in fruit samples, mainlythe insonated condition that improve the analytical performance and dispenseintermediary cleanings of the electrode surface.

【 授权许可】

CC BY