水体中多氯联苯（PCBs）固相萃取-气相色谱方法优化

With reference to the EPA analysis method, using the solid phase extraction - gas chromatography method to detect PCBS in water. To study the extraction effect of the organic modifier, the volume of activation, kinds of drench lotion and volume of drench lotion, To determine the best method of PCBs in water with solid phase extraction. Choose CP - Sil 5 cb capillary column, automatic sampling, through the temperature program, to achieve the best separation effect of 7 kinds of PCBs. Standard addition recovery is 79.30% ~ 79.30%, the method detection limit of 0.21 ~ 1.01 ng L - 1. At the same time analysis is suitable for the 7 kinds of PCBs.