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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.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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References in periodicals archive ?
Although many sophisticated techniques such as pulse polarography, HPLC, AAS, ICP-OES, and ICP-MS, are available for the determination of PR at ultra-trace levels in numerous pharmaceutical and biological materials, factors such as the low cost of the instruments, easy handling, lack of requirement for consumables, and almost no maintenance have caused spectrofluorimetry to remain a popular technique, particularly in laboratories of developing countries with limited budgets.
For decades, I had been performing "traditional" analyses: HPLC, GLC, TLC, polarography, thermal analysis, flame emission, UV/Vis, Mid-Range IR, etc.
To study the formation of complexes between macrocyclic compounds with different metal ions in solution, various physicochemical techniques such as spectrophotometry [16], polarography [17], NMR spectrometry [18], calorimetry [19], potentiometry [20] and conductometry [21, 22] have been used.
Polarography is also used today in many control laboratories as a simple, commercially available, highly sensitive, and selective method for the determination of therapeutically active substances in medications and biological fluids; see for instance [27-33].
Shain, "Theory of stationary electrode polarography. Single scan and cyclic methods applied to reversible, irreversible, and kinetic systems," Analytical Chemistry, vol.
A CPA-HH5 Computerized Polarography Analyzer (Vietnam) was used for voltammetry experiments.
Thus, it was considered proper to explore the use of those theories of stationary electrode voltammetry / polarography which are available in the literature for the evaluation of kinetic parameters for the dimerization of MV.
The maximum capacity of the membrane disk modified by 6 mg ligand was determined by passing 500 ml portions of an aqueous solution containing 300[micro]g copper at pH 7.0, followed by the determination of retained metal ions using anodic stripping differential pulse polarography. The maximum capacity of the membrane disk was found to be 220[micro]g of [Cu.sup.2+]ion on the disk.
Shain, Theory of Stationary Electrode Polarography. Single Scan and Cyclic Methods Applied to Reversible, Irreversible, and Kinetic Systems, Anal.
Therefore, this work attempted to establish experimental conditions for the study of the electrochemical behavior of zanosar by direct current polarography, cyclic voltammetry, differential pulse polarography, controlled potential electrolysis and millicoulometry.
Zuman, "Current status of polarography and voltammetry in analytical chemistry," Analytical Letters, vol.