Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/2972
Título: Anodic adsorptive stripping voltammetric determination of atrazine in spiked soil samples with a gold microelectrode
Autor: Morais, Simone
Tavares, Oriza
Paíga, Paula
Delerue-Matos, Cristina
Palavras-chave: Atrazine
Gold microelectrode
Anodic adsorptive stripping voltammetry
Spiked soil samples
Data: 2004
Editora: Taylor & Francis
Relatório da Série N.º: Analytical Letters; Vol. 37, Issue 15
Resumo: Microwave-assisted solvent extraction was combined with anodic adsorptive stripping voltammetry at a gold microelectrode to extract and quantify the herbicide atrazine in spiked soil samples. A systematic study of the experimental parameters affecting the stripping response was carried out by square-wave voltammetry. The voltammetric procedure is based on controlled adsorptive accumulation of atrazine at the potential of 0.35V (versus Ag/AgCl) in the presence of Britton–Robinson buffer pH (2.0). The limit of detection obtained for a 30 sec collection time was 4.3x10-7 mol L-1. Recovery experiments, at the 1µgg-1 level of spiking, gave good results for the global procedure, and the values found were comparable to those obtained by HPLC.
Peer review: yes
URI: http://hdl.handle.net/10400.22/2972
Versão do Editor: http://www.tandfonline.com/doi/abs/10.1081/AL-200040352#.UpS3XEr6Q25
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