Determinação de resíduos de pesticidas em plasma bovino por cromatografia gasosa-espectrometria de massas.

• Autor(a) principal: MAFFEI, D. F.
• Data de Publicação: 2009
• Outros Autores: NOGUEIRA, A. R. de A., BRONDI, S. H. G.
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
• Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/577743; https://doi.org/10.1590/S0100-40422009000700006
• topic: MSPD; GC MS; Residuo; Pesticida; Plasma; Bovino

An analytical method for the isolation based on matrix solid-phase dispersion technique and gas chromatographic determination of pesticides in cattle plasma is presented. It was fortified 0.25 g of plasma with pesticides and blended with 1 g each C18 and Na2SO4. The homogenized matter was transferred to a SPE cartridge, which contained 1 g of activated florisil with 5 mL acetonitrile. The analites were eluted under vaccum with 15 mL acetonitrile, the extract was analyzed by gas chromatography-mass spectrometry. The limit of quantification of the method was 0.04 mg L-1 for chlorphenvinfos and fipronil and 0.02 mg L-1 for cypermethrin.