polarographic analysis


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polarographic analysis

[pō¦lar·ə¦graf·ik ə′nal·ə·səs]
(analytical chemistry)
An electroanalytical technique in which the current through an electrolysis cell is measured as a function of the applied potential; the apparatus consists of a potentiometer for adjusting the potential, a galvanometer for measuring current, and a cell which contains two electrodes, a reference electrode whose potential is constant and an indicator electrode which is commonly the dropping mercury electrode. Also known as polarography.