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Differential-pulse anodic voltammetric determination of dissolved and adsorbed phosphate in turbid natural waters

โœ Scribed by K. Matsunaga; I. Kudo; M. Yanada; K. Hasebe

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
259 KB
Volume
185
Category
Article
ISSN
0003-2670

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โœฆ Synopsis

Orthophosphate in turbid natural waters exists in dissolved and adsorbed forms. Phosphate adsorbed on suspended matter in turbid waters is difficult to determine spectrophotometrically.

In the voltammetric method, the peak current is related to the reoxidation of the molybdophosphate complex at a glassy-carbon electrode. This allows the determination of dissolved and adsorbed phosphate at micromolar levels in natural waters, especially turbid waters, with good precision and accuracy.

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