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Differential Electrochemical Mass Spectrometry is a technique that allows unique online analysis of gaseous and volatile products from electrochemical reactions. The Hiden DEMS system combines advanced electrochemical half cells with excellent performance in mass spectrometry to achieve outstanding analytical capabilities.

The combined differential electrochemical mass spectrometry technique (DEMS) is developed for real-time characterisation of electro-catalytic performance with special relevance to fuel cell chemistry, giving fast identification of gaseous and volatile product and intermediates generated during the electrochemical faradaic reactions directly at the electrode/electrolyte interface.

The introduction of the Hiden DEMS benchtop system now provides the researcher with a versatile tool for detailed characterisation of electrochemical process performance through multiple electrode/electrolyte combinations, providing real-time multi-species analysis together with excellent sensitivity, monitoring evolved and adsorbed species through the range from hydrogen through to 300 amu.


Hiden offers comprehensive system operation and training, with ongoing support by professional engineers always available by telephone/email/skype. For further information visit our Booth No. B646 at The Battery Show Europe 2018 | May 15-17, 2018 | Hannover, Germany.

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