Method Development for Analysis of Short-and Long-chain Perfluorocarboxylates in Sewage
污水中短长链全氟羧酸检测方法的开发

A method using weak anion exchange cartridge for solid phase extraction before high performance liquid chromatography-negative electronspray ionization-tandem mass spectrometry WAXSPE+HPLC-ESI(-)-MS/MS] detection has been developed to measure C2-C14 perfluorocarboxylates(PFCAs) in sewages.When the weak anion exchange(WAX) cartridges were used for solid phase extraction(SPE),the better recoveries of short-and long-chain PFCAs(C2-C14) were achieved as the sewage samples were acidified to pH=3.0 by formic aci...