Analyze Gases, Vapors and VOCs in Liquids with the HPR-40 DSA (MIMS)

The Hiden HPR-40 DSA Membrane Inlet Mass Spectrometer (MIMS) is used for real-time monitoring and quantitative analysis of evolved/dissolved gases.

The compact bench-top gas analysis system is offered with a wide variety of 'DEMS' cells for differential electrochemistry mass spectrometry. DEMS cells comprise of a nano porous membrane interface, allowing rapid response, real-time, in-situ analysis of gaseous and volatile electrochemical reactants, products, and reaction intermediates.

Key Features

The key features of the Hiden HPR-40 are as follows:

  • The system allows analysis down to sub-ppb levels
  • A wide range of applications can be addressed, thanks to the presence of both circular membrane carrier inlets and dissolved species probe inlets
  • A special membrane is used by the inlet probe that permits small levels of the dissolved species to traverse through it into the ion source of a high precision quadrupole mass spectrometer
  • A solenoid safety valve protects the vacuum system and mass spectrometer during failure of a membrane
  • A manual isolation valve provides control over the sampling


The Hiden HPR-40 is appropriate for environmental applications requiring low concentration levels and for gas analysis applications requiring small sample volume.

The following are the application examples of the Hiden HPR-40:

  • Environmental monitoring
  • Monitoring methane production
  • Examining fermentation process
  • Examining soil core
  • Enzyme/microbiological activity studies
  • Groundwater contamination research
  • Water analysis in river, reservoir or estuary
  • Provides high precision and stability species ratio measurements, for instance, in marine de-nitrification studies
  • Examination of dissolved species with mass range of 200amu and optional 300amu

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