Determination of 24 Polycyclic Aromatic Hydrocarbons in Textiles by Gas Chromatography-Triple Quadrupole Mass Spectrometry with Accelerated Solvent Extraction

KeyWord:gas chromatography-triple quadrupole mass spectrometry£¨GC-MS/MS£©  accelerated solvent extraction£¨ASE£©  textile  polycyclic aromatic hydrocarbon£¨PAHs£©

Abstract:

      An analytical method based on gas chromatography-triple quadrupole mass spectrometry with accelerated solvent extraction£¨ASE/GC-MS/MS£© was established for the simultaneous determination of 24 polycyclic aromatic hydrocarbons£¨PAHs£© in textiles.PAHs in the samples were extracted by ASE with acetone,and evaporated to dryness with a rotary evaporator.The separation was performed on a DB-35 capillary column by temperature programming.The identification was performed by GC-MS/MS in multiple reaction monitoring£¨MRM£© mode£¬and the quantitation was carried out by the external standard method.The calibration curves for 24 PAHs showed good linearities in the certain concentration with correlation coefficients£¨r2£© larger than 0ª±994.The limits of detection£¨LODs£© and quantitation£¨LOQs£© for PAHs in textiles were in the ranges of 0ª±000 3-0ª±03 mg/kg and 0ª±001-0ª±10 mg/kg,respectively.The average recoveries were in the range of 80ª±3%-103% with relative standard deviations£¨RSDs,n=6£© of 1ª±3%-9ª±2%.The method is suitable for the simultaneous determination of 24 PAHs in textiles with high sensitivity,accuracy and reliability.