The derivative of pentadecafluorooctanoic acid(PFOA) in Teflon materials was determined by gas chromatography-mass spectrometry with selected ion monitor(GC-MS-SIM).The selected ion was M/Z 59.The conditions of extraction and derivation were optimized.The method could avoid the disturbance of impurity in Teflon,and was proved to be accurate and reliable.The recovery was in the range of 86%—110% and the RDS was less 4%.The limit of determination was 5×109.The method has been applied to the determination of P...
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