中文摘要：

水样中全氟辛酸、全氟辛烷磺酸钾、全氟丁酸、全氟丁烷磺酸经弱阴离子交换固相萃取柱富集净化后,用超高效液相色谱-串联质谱法测定。通过优化样品前处理条件和仪器条件,使4种全氟化合物在0.05μg/L-10.0μg/L范围内线性良好,相关系数为0.998 9-0.999 9,方法检出限为0.27 ng/L-0.96 ng/L。空白水样3个质量浓度水平的加标回收率为73.1%-91.3%,6次测定结果的RSD为7.4%-14.3%。

英文摘要：

Perfluorooctanoic acid, perfluorooctane sulfonate acid, perfluorobutyric acid, perfluorobutanesulfonic acid in water samples were concentrated and purified through WAX solid phase extraction cartridges. The ultra performance liquid chromatography tandem mass spectrometry was utilized to detect the target pollutants. By opti-mizing the conditions of pretreatment and detection, good linear relationships were observed in the range of 0.05 μg/L-10. 0 μg/L with correlation coefficients from 0.998 9 to 0.999 9. The detection limits for the four perfluorinated organic compounds were in the range of 0. 27 ng/L-0.96 ng/L. The recoveries of blank samples ranged from 73. 1 % to 91.3% with the relative standard deviations between 7.4% and 14.3% .