Optimization and validation af liquid-liquid extraction with the low temperature partition technique (LLE-LTP) for pyrethroids in water and GC analysis

Química Nova

Queiroz, Maria Eliana Lopes Ribeiro de¹  Vieira, Heulla Pereira¹  Neves, Antônio Augusto¹  Universidade Federal de Viçosa, Viçosa, Brasil¹ 

关键词: pyrethroid;    validation;    gas chromatography.;   

DOI  :  10.1590/S0100-40422007000300006

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The liquid-liquid extraction with the low temperature partition technique was developed for the analysis of four pyrethroids in water by CG. Using a factorial design the extraction technique was optimised evaluating the effect of the variables ionic strength, contact time and proportion between sample and solvent volumes. The validation parameters sensitivity, precision, accuracy and detection and quantification limits were evaluated. The LOD and LOQ of the method varied from 1.1 to 3.2 µg L-1 and 2.7 to 9.5 µg L-1, respectively.

【 授权许可】

Unknown