Development of a metodology for analysis of pyrethroids in butter

Quimica nova

Bittencourt, Leila Moreira¹  Queiroz, Maria Eliana Lopes Ribeiro de¹  Neves, Antônio Augusto¹  Marthe, Deyse de Brito¹ 

[1] Universidade Federal de Viçosa, Viçosa, Brasil

关键词: pyrethroid;    butter;    gas chromatography.;   

DOI  :  10.1590/S0100-40422010000600030

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The objective ofthis study was to evaluate the use of the matrix solid-phase dispersion techniqueassociated with purification at low temperature for the determination of pyrethroidsin butter. Evaluated parameters included: sample/adsorbent ratio, type of adsorbentand extractor solvent. The optimized method was validated based on predeterminedrequirements. The detection limits of the pyrethroids cypermethrin and deltamethrinwere 0.082 and 0.11 μgg-1, and quantification limit were 0.28 and 0.32 μgg-1, respectively, with extraction percentages near 90% and coefficientsof variation less than of 10%..

【 授权许可】

CC BY