【摘要】 针对国际对纺织品中全氟辛磺酸(PFOS)和全氟辛酸(PFOA)的限量要求,采用ASE-300快速溶剂萃取仪提取样品中PFOS和PFOA,经浓缩、净化、过膜、定容后用液相色谱串联质谱法测定,外标法定量。采用选择离子检测进行阳性确证,建立纺织品中PFOS和PFOA的检测方法。该方法的最低检出限、线性范围和方法回收率对PFOS为1.0μg/kg、3.0~300μg/kg和82.35%~105.60%;对PFOA为0.5μg/kg、1.5~200μg/kg和85.17%~107.78%。更多还原

【Abstract】 The perflurooctane sulfonates(PFOS) and pentadecafluorooctanoic acid(PFOA) in textiles are extracted with touluene and methanol by Accelarated Solvent Extractor(ASE).The extracted liquid was concentrated,purified film filtered,volume specified,and then it was determined by LC-MS-MS.The determination method for PFOS and PFOA in textiles by LC-MS-MS is developed.The detection limit,linear range,and recovery rate of this method,for PFOS,are 1.0μg/kg、3.0-300μg/kg and 82.35%-105.60% respectively;and for PFOA,are 0.5μg/kg、1.5-200μg/kg and 85.17%-107.78% respectively.更多还原