Determination of polychlorinated biphenyls in umbilical cord serum by acid hydrolyze extraction followed by gas chromatography with micro-electron-capture detection

Química Nova

Wagner, Roger¹  Costabeber, Ijoni Hilda¹  Soldatelli, Leandra¹  Mohr, Susana¹  Universidade Federal de Santa Maria, Santa Maria, Brasil¹  Schwanz, Thiago Guilherme¹ 

关键词: PCBs;    umbilical cord;    gas chromatography.;   

DOI  :  10.1590/S0100-40422011000300015

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The present work describes the determination of polychlorinated biphenyls in 123 umbilical cord serum samples by liquid-liquid extraction method with acid hydrolyze step and analysis by GC-mECD. The analytical method was evaluated with following figures of merit for all PCBs: linearity (>0.997); precision (<12.55%); recoveries (73-119%); limit of detection (0.1 ng mL-1); limit of quantification (0.25-0.5 ng mL-1). The results showed high contamination in the analyzed samples. PCB more frequent was 138 (66.7%), followed by 180 (55.3%) and 52 (51.3%).

【 授权许可】

Unknown