论文部分内容阅读
建立了针对上光剂中包括全氟己酸(PFHx A)、全氟辛酸(PFOA)、全氟壬酸(PFNA)、全氟癸酸(PFDA)、全氟十一酸(PFu DA)、全氟十二酸(PFDo A)、全氟丁烷磺酸(PFBS)、全氟己烷磺酸(PFHx S)、全氟辛烷磺酸(PFOS)、全氟癸烷磺酸(PFDS)在内的10种全氟化合物(PFCs)的液相色谱-串联质谱法(LC-MS/MS)测定分析方法。采用超声法提取测试目标化合物,提取液用混合型弱阴离子交换固相萃取柱净化,用液相色谱-串联质谱仪测定。结果表明,该方法的检测低限均为50μg/kg,相对标准偏差在10%以内,加标回收率85.5%~106.0%。该方法准确、快速,能满足上光剂中全氟化合物测定要求。
In this paper, a series of methods were established to improve the performance of the polishing agent, including PFHxA, PFOA, PFNA, PFDA, PFuDA, PFDo A, PFBS, PFHx S, PFOS, PFDS, and so on Liquid chromatography-tandem mass spectrometry (LC-MS / MS) method for the determination of 10 perfluorinated compounds (PFCs). The target compound was extracted by ultrasonic method. The extract was purified by mixed weak anion exchange SPE column and determined by liquid chromatography-tandem mass spectrometry. The results showed that the detection limit of this method was 50μg / kg, the relative standard deviation was within 10% and the recoveries were between 85.5% and 106.0%. The method is accurate and rapid and can meet the requirements of perfluorocompound determination in polish.