polarographic

polarography

[poh-luh-rog-ruh-fee]
noun
Chemistry. the use of a Polarograph to perform qualitative or quantitative analyses.
Also called polarographic analysis.


Origin:
1935–40; Polaro(graph) + -graphy

polarographic [poh-lar-uh-graf-ik, puh-] , adjective
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World English Dictionary
polarography (ˌpəʊləˈrɒɡrəfɪ)
 
n
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

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