Chromatography

The unique Combi Source of the GCMS-QP2010 Ultra for EI, PCI and NCI reduces the down time of your instrument and makes method development easy. EI (Electron Impact) gives classical mass spectra for easy identification of the sample components. In PCI (Positive Chemical Ionization) the molecular weight of the compounds can be determined, indispensable in organic research labs. Negative Chemical Ionization (NCI) gives highest sensitivity for chlorinated contaminants e.g. solvents or pesticides. You can choose your reagent gas according to your needs from methane, iso-butane or ammonia supplied by the 2 ports on the GCMS-QP2010 Ultra. Of course all techniques including PCI and NCI are optimized by our well known Autotuning procedure including mass number calibration, independent of the reagent gas you have chosen - no need for any manual adjustment of GCMS parameters.