The Consumer Product Safety Improvement Act of 2008 (CPSIA-USA) requires testing of child care products and toys in the US for specific phthalate esters by GCMS. The CPSC test method specifies solvent extraction and subsequent GCMS analysis for specific phthalate esters. In this study, analysis by pyrolysis GCMS was investigated as a technique to simplify sample preparation and improve analytical precision.
The CPSC test method also specifies GCMS analysis in the SIM mode to monitor for low-intensity ions that are unique to specific phthalate esters. Full scan mass spectra are extremely valuable in making unequivocal qualitative identification of specific phthalate isomers, however. Operation of the mass spectrometer in the FASST (Scan/SIM) mode allows concurrent acquisition of full-scan and SIM mass spectral data, without sacrificing sensitivity of SIM analysis.