Gaschromatographie - Massenspektrometrie
Agilent / Gerstel GC7890B MSD 5977A TDU 2 GC-MS (2004)
Determination of:
- Headspace of solid, liquid and gaseous samples via cold injection system by split/splitless method
- Thermodesorption of liquid and solid samples via cold injection system by split/splitless method
- Liquid samples via hot/cold injection system by split/splitless method
- Qualitative determination of unknown substances on the basis of charakteristic mass spectra (Mass spectra library available)
- Quantitative determination of known substances by calibration with internal standard
- Minimun sample concentration: 0.1 mg/mL
Column
- HP-5MS UI (L = 30m, ID = 0.25mm FT = 0.25µm)(Temp. limits: -60-350°C)
- DB-5MS (L = 30m, ID = 0.25mm FT = 0.25µm)(Temp. limits: -60-350°C)
Detector
- Quadropol MS with EI of 1000 eV
- Mass detection of 1.6 g/mol up to 1050 g/mol
Modes of Measurements
- Scan: Detection of mass spectras in a defined area (i.e. m/z = 50-300)
- SIM: Measurment of discret, known mass signals
Contact: S. Agarwal, A. Greiner.
