Analysis of pesticides in water using liquid-liquid extraction with partition at low temperature and high performance liquid chromatography

Química Nova

Pinho, Gevany Paulino de¹  Cacique, Ane Patrícia¹  Silvério, Flaviano Oliveira¹  Universidade Federal de Minas Gerais, Montes Claros, Brasil¹  Silva, Joyce Grazielle Siqueira¹  Aguiar, Maria Clara Santana¹ 

关键词: LLE-LTP;    pesticides;    HPLC-UV.;   

DOI  :  10.1590/S0100-40422012001000027

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

This study optimized and validated the liquid-liquid extraction technique with partition at low temperature (LLE-PLT) for identification and quantification of four pesticides (chlorpyrifos, λ-cyhalothrin, permethrin, bifenthrin) in water samples. Analyses were performed by HPLC-UV. The technique was efficient for pesticide recovery with extraction exceeding 86%. Chromatographic response was linear for the four compounds in the 10-45 µg L-1 range, with correlation coefficients greater than 0.99. Limits of detection and quantitation were less than 3.5 µg L-1 and equal to 10 µg L-1, respectively. The proposed method was applied to 29 water samples from the Jaíba Project in northern Minas Gerais.

【 授权许可】

Unknown