DEMS
for Differential Electrochemical Mass Spectrometry
Differential Electrochemical Mass Spectrometry (DEMS) is an analytical technique that combines electrochemical half-cell experimentation with mass spectrometry.
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It allows in situ mass resolved determination of gaseous or volatile electrochemical reactants, reaction intermediates and products in real time.
The experimental setup consists of an electrochemical half-cell, the membrane interface and a vacuum system including a quadrupole mass spectrometer.
DEMS is closely related to membrane inlet mass spectrometry (MIMS).
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