Development of a metodology for analysis of pyrethroids in butter

Química Nova

Bittencourt, Leila Moreira¹  Queiroz, Maria Eliana Lopes Ribeiro de¹  Neves, Antônio Augusto¹  Universidade Federal de Viçosa, Viçosa, Brasil¹  Marthe, Deyse de Brito¹ 

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 of this study was to evaluate the use of the matrix solid-phase dispersion technique associated with purification at low temperature for the determination of pyrethroids in butter. Evaluated parameters included: sample/adsorbent ratio, type of adsorbent and extractor solvent. The optimized method was validated based on predetermined requirements. The detection limits of the pyrethroids cypermethrin and deltamethrin were 0.082 and 0.11 μg g-1, and quantification limit were 0.28 and 0.32 μg g-1, respectively, with extraction percentages near 90% and coefficients of variation less than of 10%..

【 授权许可】

Unknown