gas chromatography-inductively coupled plasma mass spectrometry parallel ICP-MS and EI-MS detection after GC separation https://orcid.org/0000-0001-5985-7429 GC/EI-MS/ICP-MS 2009-10-21T06:00:00Z A method where a sample mixture is first separated by gas chromatography before part of the sample is ionised in a plasma (a partially ionised gas–-such as Ar–-containing free electrons) which has been generated by electromagnetic induction, and characterised according to mass-to-charge ratio and relative abundance. Another part of the sample is simultaneously ionised by electrons (energy 70 eV) which have been emitted from a glowing filament and accelerated through an electric field. The ions are then characterised according to mass-to-charge ratio and relative abundance. CHMO:0002538 GC-EI-MS/ICP-MS