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[mass noun] A method of analysis in which a sample is subjected to electrolysis using a special electrode and a range of applied voltages, a plot of current against voltage showing steps corresponding to particular chemical species and proportional to their concentration.
- ‘The states of the Mn complex reached after increasing periods of heating were investigated by oxygen polarography, EPR spectroscopy, and, in particular, by x-ray absorption spectroscopy.’
- ‘In electrochemical analysis by such methods as anodic stripping voltammetry, cyclic voltammetry, differential pulse polarography, and potentiometry, the anode always functions as the site of oxidation.’
- ‘He was a physical chemist who won the Nobel Prize in 1959 for his discovery of polarography and its use in analytic chemistry.’
1930s: from polarization (see polarize)+ -graphy.
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