An investigation of micro-scale sealed vessel thermal extraction-gas chromatography-mass spectrometry (MSSV-GC-MS#) and micro-scale sealed vessel pyrolysis-gas chromatography-mass spectrometry applied to a standard reference material of an urban dust/organics

摘要: Sealed vessel thermal extraction and micro-scaled sealed pyrolysis coupled to gas chromatography-mass spectrometry (TH-GC-MS MSSV-GC-MS) were qualitatively applied a standard reference material of suspended urban dust/organics (NIST Standard Reference Material 1649). Equal amounts organic compounds similar concentrations the most volatile components produced by both extract MSSV techniques. However, analyses show notably increased levels semi-volatile reduction in unresolved complex mass (UCM) related higher molecular weight heteropolymers particulate. The technique appears be breaking down more that previously intractable from particulate substrate so doing release lower which may used as basis for characterising this component. In combination provide an effective approach characterisation PM10 organics.