Real time analyzer of volatile organic compounds (VOCs). BTrap solution associates Chemical Ionization like Proton Transfer Reaction, with a new compact and low cost Fourier Transform Ion Cyclotron Resonance (FT-ICR) mass spectrometer. BTrap is rugged and can be installed on site.

BTrap features: 

  • Monitoring: measurements every second.
  • Screening: broadband detection.
  • Accurate measurement: high mass resolution.
  • Direct quantification.
  • Transportable device.     


Functional specifications




Soft Ionization: use of Chemical Ionization (CI) methods such as PTR (Proton Transfer Reaction) ionization. Chemical Ionization provides less fragmentation than Electron Impact, which allows a better identification of the compounds.

The most commun reactions used for VOCs detection are Proton Transfer Reaction from H3O+, charge transfer reaction from  O2+ , NO+.

Negative ions, for example O, can also be used.




Mass range 4-300u
Mass resolution10 000
Mass precision0.015 u
Measurement frequency1 Hz


Detection limit


200 ppb per direct injection.

Improvement up to 2 to 3 orders of magnitude with preconcentration (a few ppb).


Analytical capacities


Well-suited for VOCs detection:    

  • Gaz analysis
  • Headspace analysis (liquids, solids)    

Qualitative and quantitative measurement (calibration or absolute measurements)  


Technical specifications


Structured permanent magnet1.5 Tesla
Low leakage field
Turbomolecular pumps70L.s-1
Ultra vacuum10-9 torr
Sampling lines
Continuous flow, thermostated
Preconcentration MIMS or TD Flash in option:
learn more about TDFlash and BTrap coupling by clicking here.
On wheel
Weight < 150 kg
Size (WxDxH)65x72x104 cm
Power supply100/240 V AC, 50-60 Hz
Power Consumption< 1 KW
Temperature range5°C to 45°C
Operating humidity < 80%



Different access levels softwares come with the BTrap instrument.


BTrap user software


The BTrap user software is an easy-to-use tool dedicated to continuous on-site analysis, by enabling creation of sequences and automatic quantization of VOCs.



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BTrap FT-ICR software


The BTrap FT-ICR software is a very powerful tool dedicated to both acquisition and data process. Some facilites can be tailor-made since FT-ICR is entirely written and maintained by our software development team.














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BTrap applications:








Interested in more information? Contact us or download the BTrap brochure.