【摘要】 采用超高效液相色谱-电喷雾串联质谱联用技术建立了龙头水中5种全氟化合物的检测方法,水样经过固相萃取、富集、液质联用分析,采用乙腈和乙酸铵溶液作为流动相,在5 min内完成对5种目标化合物的分析。在优化的实验条件下,全氟化合物在0.5~50μg/L范围内具有良好的线性(R2)0.99),样品的加标回收率为71.6%~116.0%,相对标准偏差为0.41%~12.88%。更多还原

【Abstract】 The method for the determination of five kinds of perfluorinated compounds in tap water was established by solid phase extraction,ultra high performance liquid chromatography electrospray ionization tandem mass spectrometry(UPLC-ESI-MS/MS).Using acetonitrile and ammonium acetate as the mobile phase,the five target compounds were analyzed within 5 minutes.Under the optimized conditions,the calibration curves for 5 target compounds were linear in the range of 0.5~50 μg/L with correlation coefficients(r~2) greater than 0.99.The average recoveries were 71.6 %~116.0 %,the relative standard deviation(RSDs) were 0.41 %~12.88 %.更多还原