Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

Full text
Author(s):
Gustavo S. Garbellini [1] ; Luis A. Avaca [2] ; Giancarlo R. Salazar-Banda [3]
Total Authors: 3
Affiliation:
[1] Universidade de São Paulo. Instituto de Química de São Carlos - Brasil
[2] Universidade de São Paulo. Instituto de Química de São Carlos - Brasil
[3] Universidade Tiradentes. Instituto de Tecnologia e Pesquisa - Brasil
Total Affiliations: 3
Document type: Journal article
Source: Química Nova; v. 33, n. 10, p. 2261-2265, 2010-00-00.
Abstract

The potentiality of the use of ultrasound radiation in association with a boron-doped diamond electrode was evaluated on the voltammetric determination of the pesticide carbaryl. Improvements in the sensitivity, limit of detection and reproducibility of the measurements were observed due to both, the enhancement of mass transport and the cleaning of the electrode surface provided by ultrasound. Satisfactory recovery levels for carbaryl in pure water (96-98%) and pineapple juice (89-92%) for quiescent and sonovoltammetric methodologies were obtained. These methodologies can be alternative tools for the analyses of pesticides in fruit samples, mainly the insonated condition that improve the analytical performance and dispense intermediary cleanings of the electrode surface. (AU)