gravimetric analysis electrochemical quartz crystal microgravimetry electrochemical QCM measurements A method used to determine the ratio of the mass, deposited at the electrode surface during an electrochemical reaction, to the total charge passed through the electrode (the 'current efficiency'). The electrode surface is deposited on a piezoelectric quartz crystal, and the change in resonance frequency of the crystal is measured. eQCM measurements https://orcid.org/0000-0001-5985-7429 EQCM measurements 2009-05-21T12:56:07Z EQCM technique CHMO:0001799 electrochemical quartz crystal microbalance technique electrochemical QCM technique electrochemical quartz crystal microbalance measurements eQCM technique electrochemical QCM