2019-05-20 : After World Metrology Day Mercer Instruments welcomes the new kilogram.
advancing sorption science

Dissolved species analysis by Membrane Inlet Mass Spectrometry

Dissolved gas analysis in a biological sample.

The HPR-40 DSA provides real-time analysis of dissolved gases in aqueous solutions. Gases and vapours diffuse out of the liquid phase across a polymer membrane and are sampled by a mass spectrometer gas analyser.

Features of the HPR-40 family of DSA systems include:

  • A flexible MIMS system with a variety of sampling configurations including a direct insertion probe, continuous flow cells and options for integrated fluid agitation.
  • Low gas consumption with static sampling
  • Dynamic gas sampling with continuous flow
  • Multiport inlet manifold for simultaneous online measurement of several samples
  • High sensitivity quadrupole mass spectrometer detection of gas species.
  • Continuous data acquisition for real time analysis

Some typical application areas:

  • Dimethyl Sulphide (DMS) in seawater
  • Respiration and metabolic studies of aquatic organisms
  • Pollution studies in lakes, rivers and estuary waters
  • Peat and soil core analysis
  • Fermentation monitoring and aeration control
  • Environmental monitoring.

For more information, or if you would like to discuss your application, please contact us.


Mercer Instruments specialises in the supply and support of scientific instruments for measurements of sorption, and characterisation of pore size and surface area.
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Mercer Instruments
for gas and vapour sorption.
In France, Italy, Switzerland, and Benelux.
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