膜渗透蒸发/GC-MS测定纺织品中多氯联苯

Determination of polychlorobiphenyls(PCBs) in textiles by pervaporation/GC-MS

采用膜渗透蒸发／气相色谱．质谱联用技术，建立了纺织品的多氯联苯测定方法。优化的试验条件为，料液浓度50～1000μg／L，温度43℃，Na2SO4含量0～1％，流速380mL／min。本方法对目标化合物的检测限均低于0.03mg／L，加标回收率在76.66％～118．71％，相对标准偏差小于12％。

The method based on pervaporation and gas chromatography with mass spectrometry （GC/MS） for determination of polychlorobiphenyls [ PCBs） in textiles is described. The optimized conditions of the experiment are concentration of liquid 50 ～ 1000μg/L, temperature 43℃, Na2SO4 0 - 1%, and flow rate 380 mL/min. The detection limits for the method are less than 0.03 mg/L for target compounds, the average recoveries from 76.66 % to 118.71% and the relative standard deviation less than 12%.