polarography


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Related to polarography: Voltammetry

po·lar·og·ra·phy

 (pō′lə-rŏg′rə-fē)
n.
An electrochemical method of quantitative or qualitative analysis based on the relationship between an increasing current passing through a solution and the increasing voltage used to produce the current.


po·lar′o·graph′ic (-lăr′ə-grăf′ĭk) adj.
po·lar′o·graph′i·cal·ly adv.

polarography

(ˌpəʊləˈrɒɡrəfɪ)
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 adj

po•lar•og•ra•phy

(ˌpoʊ ləˈrɒg rə fi)

n.
a technique for analyzing an electrolytic solution by comparing the current passed through a specimen with its voltage.
[1935–40]
po•lar`o•graph′ic (-ˌlær əˈgræf ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.polarography - an electrochemical method of chemical analysis
chemical analysis, qualitative analysis - the act of decomposing a substance into its constituent elements
References in periodicals archive ?
Despite their advantages, all these methods have problems and limitations, including the use of organic and toxic solvents or the use of toxic mercury in polarography method.
The objective of this study was to survey the ability of two bacterial isolates, namely TBZ9 and TBZ23, isolated from Urmia Lake in Iran [19], to reduce Fe(III) to Fe(II) by the aid of differential pulse polarography.
The Cr, analysed by atomic absorption spectroscopy and then polarography, was not in the highly toxic Cr(VI) form but mainly occurred as Cr(III) (oxides and hydroxides).
We offer solutions for laboratory and online measurements based on techniques like titration, ion chromatography, colormetric, ion selective electrode and polarography.
1972, Determination of lead in fish by atomic absorption spectrophotometry and by polarography.
One of the most informative ways of assessing mitochondrial function is by analysis of mitochondrial oxygen consumption by polarography using the Clark-type oxygen electrode (7).