A high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS) analysis method was established for the determination of 10 perfluorinated organic compounds in lubricants. After solvent extraction, different types of lubricant samples were purified using weak anion exchange columns and graphitized carbon columns, separated by C18 chromatography columns, and subjected to qualitative and quantitative analysis under HPLC-MS/MS multi reaction monitoring mode. The detection limit of 10 methods for perfluorinated organic compounds is 0 001 -0. 005 mg/kg; The average recovery rate within the three levels of low, medium, and high addition is 79 05% -106. 26%; The intra day precision is less than 10%, and the inter day precision is less than 20%

Recommended instruments:Used AB API4000 triple quadrupole liquid chromatography-mass spectrometer