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Amperometric determination of oxidizable solutes in water with a solution exchange technique

โœ Scribed by Charles Gartske; Calvin O. Huber

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
431 KB
Volume
300
Category
Article
ISSN
0003-2670

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โœฆ Synopsis

Determination of oxidizable solutes in water is accomplished using amperometric detection in a solution exchange apparatus.

The applied potential (E,J used is + 0.5 V vs. SCE at a nickel working electrode. Electrode pretreatment is performed at -1.0 V vs. SCE. The background electrolyte is 0.1 M NaOH. Analyte solution drawn into the cell replaces background solution. No further convection occurs. Peak anodic current relative to the baseline is used as the analytical signal. The linear range extends down to 1 PM for sucrose, diethylenetriamine, phenol, and ethanolamine. The determination time is 2 min per sample.

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