Determination of Phosphate by Cathodic Stripping Voltammetry at a Glassy Carbon Electrode
- 1 October 1974
- journal article
- research article
- Published by Taylor & Francis in Analytical Letters
- Vol. 7 (10), 659-670
- https://doi.org/10.1080/00032717408059026
Abstract
The oxidation of Fe(II) in the presence of phosphate results in a film of a sparingly soluble Fe(III) phosphate salt on a glassy carbon electrode. The reaction is used as the preconcentration step in a cathodic stripping method for phosphate. The recommended procedure yields working curves which are linear over single orders-of-magnitude down to 0.1 ppm, With a 40-minute preconcentration time, 40 ppb phosphate can be detected. The method is free of interference by chloride and sulfate.Keywords
This publication has 4 references indexed in Scilit:
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