auto GCMS / FID

Technical Specifications

Mass Spectrometers
  • Analyser:
    • 1-300 amu
    • 6×100 mm rod-system with pre filter
    • Faraday cup (high concentrations – % and for service)
    • SEM dynode (low concentrations – down to ppb)
  • Detection limits:
    • Direct MS < 50 ppb for Benzene
    • auto GCMS: after airmoVOC C6 C12 expert <10 ppt for Benzene and after chroma FID <10 ppb for Benzene
  • Mass Axis Stability:
    • >0.2 UMA/year
  • Detection range:
    • With airmoVOC from 0.01 ppb until 10000 ppb
    • With chroma FID from 10 ppb until 100 000 ppb
    • 7 decades dynamic range 0,1 ppm – 100 % with direct MS
  • Relative Standard Deviation:
    • RSD < 3 % on concentration over 48H
    • RSD < 0.3% on retention time over 48H
  • Results:
    • Full result storage (data and chromatogram)
    • Embedded computer Windows® based with LCD display
    • 128 GB of Hardware storage on SSD memory
    • 4 USB Connecting Port
    • Two RS-232 ports
    • Display: 10’’ TFT Color LCD
    • MODBUS RTU / JBUS communication protocol
    • Data Storage (timestamp)
  • Cycle time:
    • 4 ms – 60 s (in standard)
    • From 2 min for fast GCMS to 60min for trap GCMS of more than 100 compounds
  • Gas supply:
    • H2 (FID and carrier gas): 30 ml/min (supply 2 bar ; 1/16’’double ferrule)
    • Air (FID) : 180 ml/min (supply 3 bar ; 1/8’’double ferrule
    • Sample supply (sample pump) 1/4’’double ferrule
    • Pneumatic valve 90ml/commutation


Due to the large number of Volatile Organic Compounds (VOCs), there is a need to combine their separation and quantification by Gas Chromatography (GC) with Flame Ionization Detection (FID) and their individual identification by Mass Spectrometry (MS).

With this aim, Chromatotec® has developed a turnkey solution which al­lows the automatic quantification and identification of VOCs : the airmoSCAN XPERT. It is a combination of one or two robust instruments : a dual GC-FID for the monitoring of C2 to C20+ compounds (airmoVOC expert) and a process Quadrupole MS. The instrument allows the monitoring of at least 123 VOCs at ppt, ppb, ppm and % levels in only 30 minutes. Thanks to this dual detector combination, users can avoid the risk of saturated signal on FID when important emission or immission events occur. Results are automatically validated by intercomparing of both detectors.

Thanks to its many advantages (easy to use, fully automatic, intrinsically linear, precise and very stable system with data validation) this solution has been implemented in fixed and mobile laboratories for urban and industrial field analysis all over the world.

Tests reports & Certifications