po·lar·og·ra·phy (p  l -r g r-f )n. An electrochemical method of quantitative or qualitative analysis based on the relationship between an increasing current passing through the solution being analyzed and the increasing voltage used to produce the current. [polar(ization) + -graphy.] po·lar o·graphic (-l r-grf k) adj.po·lar o·graphi·cal·ly adv. |
polarography [ˌpəʊləˈrɒgrəfɪ]
n
(Chemistry) a technique for analysing and studying ions in solution by using an electrolytic cell with a very small cathode and obtaining a graph (polarogram) of the current against the potential to determine the concentration and nature of the ions. Because the cathode is small, polarization occurs and each type of anion is discharged at a different potential. The apparatus (polarograph) usually employs a dropping-mercury cathode
polarographic [ˌpəʊlərəˈgræfɪk] adj
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| Noun | 1. | polarography - an electrochemical method of chemical analysis chemical analysis, qualitative analysis - the act of decomposing a substance into its constituent elements |
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