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polarography

Line breaks: po¦lar|og¦raphy
Pronunciation: /ˌpəʊləˈrɒɡrəfi
 
/

Definition of polarography in English:

noun

[mass noun] Chemistry
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.
Example sentences
  • 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.
  • 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.
  • He was a physical chemist who won the Nobel Prize in 1959 for his discovery of polarography and its use in analytic chemistry.

Origin

1930s: from polarization (see polarize) + -graphy.

Derivatives

polarographic

1
Pronunciation: /-ˈɡrafɪk/
adjective
Example sentences
  • Most popular are the polarographic and the optical spectroscopic methods.
  • A standard polarographic assay was used to measure oxygen consumption by the isolated mitochondria.
  • The measurement of arterial PO 2 was revolutionized by the introduction of the polarographic oxygen electrode.

Definition of polarography in:

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