polarogram


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polarogram

[pə′lar·ə‚gram]
(analytical chemistry)
Plotted output (current versus electrode voltage) for polarographic analysis of an electrolyte.
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Differential pulse polarograms of control (untreated) samples are shown in Fig.
However, in differential pulse polarograms of TBZ9-treated samples, again the intensity of the second peak is twice the intensity of the first peak, showing that TBZ9 reduces Fe(III) to metallic Fe.
1 M electrolyte (taken as 1 mL from 1 M stock solution prepared in methanol) was first run by DPP method at optimized conditions in order to get a background polarogram in the potential range of -1.
Moreover, the peak potential is shifted towards lower values which results in a sharper and better shaped polarogram.
Selection of mode Various modes of polarography and voltammetry were checked to get enhanced polarograms and voltammograms.
All polarograms and cyclic voltammograms were recorded after establishing current-voltage baselines in solutions absent the reductant.