Quantificação de sulfadimetoxina em leite por cromatografia líquida de alta eficiência

• Autor(a) principal: Feltrin,Carlos Willian
• Data de Publicação: 2007
• Outros Autores: Mello,Ana Maria de Souza, Santos,João Gabriel Rosa dos, Marques,Marcelo Volpatto, Seibel,Nair Maria, Fontoura,Luiz Antonio Mazzini
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Química Nova (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000100018
• topic: sulfadimethoxyne; milk; HPLC

A method for HPLC determination of sulfadimethoxyne in milk is presented. The analyte isolation and concentration were performed by solid-phase extraction through a C-8 cartridge, pre-conditioned with hexane, methanol and water and eluted with MeOH. The recovery determination was done with a spiked solution of 20, 50 or 100 µg L-1. In this concentration range, the recovery was 83.2% with a RDS of 15.4%. For quantification, a Zorbax Eclipse XDB-C8 (4.6 mm x 150 mm, 5 µm), a mobile phase of MeCN: 0.01 mol L-1 KH2PO4 aq. (1:4), and a variable wavelength detector (275 nm) were used.