Data/hora: 21/06/2024 07:36:37

Biblioteca(s): | Embrapa Pecuária Sudeste.
Data corrente: | 05/05/2009
Data da última atualização: | 15/03/2023
Autoria: | MACEDO, A. N.; NOGUEIRA, A. R. de A.; BRONDI, S. H. G.
Afiliação: | Adriana N. Macedo, UFSCar; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; Silvia Helena Govoni Brondi, FAPESP.
Título: | Matrix solid-phase dispersion extraction for analysis of cypermethrin residue in cows milk.
Ano de publicação: | 2009
Fonte/Imprenta: | Chromatographia, v. 69, n.5-6, p. 571-573, 2009.
DOI: | 10.1365/s10337-009-0953-y
Idioma: | Inglês
Conteúdo: | A method of extraction based on matrix solid-phase dispersion has been developed, optimized, and validated by chromatographic analysis of cypermethrin pesticide residues in samples of cows? milk. Milk (0.25 g) was fortified with cypermethrin and blended with 1 g each of C18 (octadecylsilane) silica and Na2SO4 (anhydrous sodium sulfate), used to trap fats and water, respectively. The homogenized material was transferred to a commercial SPE cartridge containing 1 g activated Florisil with 5 mL acetonitrile. Cypermethrin was eluted under vacuum with 5 × 2 mL acetonitrile and the extract was concentrated to 1 mL and analyzed by gas chromatography?mass spectrometry. The limits of detection and quantification of the method were 0.025 and 0.08 mg kg?1, respectively.
Palavras-Chave: | Chromatographia gas.
Thesagro: | Cromatografia; Gas.
Thesaurus Nal: | cypermethrin; mass spectrometry; milk.
Categoria do assunto: | W Química e Física
Registro original: | Embrapa Pecuária Sudeste (CPPSE)
Exemplares: | CPPSE - (18315-1) - UPC - AP - DD - PROCI-2009.00001 - MAC - 2009.00001 - DIS