Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/2979
Título: Development and validation of a novel method for the analysis of chlorinated pesticides in soils using microwave-assisted extraction–headspace solid phase microextraction and gas chromatography–tandem mass spectrometry
Autor: Herbert, Paulo
Morais, Simone
Paíga, Paula
Alves, Arminda
Santos, Lúcia
Palavras-chave: Microwave-assisted extraction
Solid phase microextraction
Chlorinated pesticides
Extraction methods
Landfill soil
Data: 2006
Editora: Springer-Verlag
Relatório da Série N.º: Analytical and Bioanalytical Chemistry; Vol. 384, Issue 3
Resumo: A new procedure for determining eleven organochlorine pesticides in soils using microwave-assisted extraction (MAE) and headspace solid phase microextraction (HS-SPME) is described. The studied pesticides consisted of mirex, α- and γ-chlordane, p,p’-DDT, heptachlor, heptachlor epoxide isomer A, γ-hexachlorocyclohexane, dieldrin, endrin, aldrine and hexachlorobenzene. The HS-SPME was optimized for the most important parameters such as extraction time, sample volume and temperature. The present analytical procedure requires a reduced volume of organic solvents and avoids the need for extract clean-up steps. For optimized conditions the limits of detection for the method ranged from 0.02 to 3.6 ng/g, intermediate precision ranged from 14 to 36% (as CV%), and the recovery from 8 up to 51%. The proposed methodology can be used in the rapid screening of soil for the presence of the selected pesticides, and was applied to landfill soil samples.
Peer review: yes
URI: http://hdl.handle.net/10400.22/2979
ISSN: 1618-2642
Versão do Editor: http://link.springer.com/article/10.1007%2Fs00216-005-0211-6
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