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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

Herbert, P (Autor) Outra; Morais, S (Autor) Outra; Paiga, P (Autor) Outra; Alves, A (Autor) FEUP; Santos, L (Autor) FEUP

Revista

Título: Analytical and Bioanalytical Chemistry

Vol. 384

Páginas: 810-816

ISSN: 1618-2642

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 29 Citações

ISI Web of Science

Scopus - 36 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-004-NAW

DOI: 10.1007/s00216-005-0211-6

Resumo (PT): Analytical and Bioanalytical Chemistry

Abstract (EN): 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, alpha- and gamma-chlordane, p,p'-DDT, heptachlor, heptachlor epoxide isomer A, gamma-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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7