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Combination of CI and Low EI Capabilities With High-Resolution Q-TOF GC/MS

Important applications for high-resolution gas chromatography-mass spectrometry (GC/MS) systems include untargeted screening approaches as well as unknown compound identification. For many classes of compounds, low energy electron ionization (EI) provides significant improvements in the relative abundance of molecular ions compared to standard (70 eV) EI.

There is also an opportunity for chemical ionization to be used as an alternative ionization source or as a complementary technique.

Download this application brief to discover:

  • A comparison of low energy EI and chemical ionization data
  • The benefits of a system equipped with a low energy‑capable EI source as well as an interchangeable CI source
  • New opportunities in compound identification