GC/MS modes d'ionisation CI , CI/NCI et SMCI

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CI and CI/NCI Measurement

CI is a softer ionization method than EI, fragmentation is less likely to occur, so molecular weight information is more readily obtained. Negative chemical ionization (NCI) or negative ion chemical ionization (NICI) enables selectively measuring, with ultra high sensitivity, chemical substances with an electron affinity, such as chlorine-based compounds.

Fonctionnalités

  • CI and CI/NCI Measurement
    CI
    Since information about molecular weight can be obtained easily using chemical ionization (CI), accurate qualification is possible.
    When analyzing mass spectra, first molecular ions...
  • CI and CI/NCI Measurement
    NCI
    Negative chemical ionization (NCI) or negative ion chemical ionization (NICI) enables selectively measuring, with ultra high sensitivity, chemical substances with an electron affinity, such as chlorine-based compounds...
  • CI and CI/NCI Measurement
    SMCI
    SMCI stands for Solvent Mediated Chemical Ionization, a soft ionization method for GCMS. The headspace reagent gas from the sample bottle is introduced into the GCMS ionization unit to be...
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