The Polarographic Determination of Phosphate

The Polarographic Determination of Phosphate

A method is described for estimating polarographically the amount of phosphate in small volumes of liquid, where the phosphorus content lies between 0.5 and 10.5 μg. P/ml. with an error of ± 0.2 μg. P/ml. even when chloride, nitrate, and sulphate are present in excess. The method is based on precipi...

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Veröffentlicht in:Journal of experimental botany 1952-02, Vol.3 (1), p.47-51
1. Verfasser: DEBNEY, E. W.
Format: Artikel
Sprache:eng
Schlagworte:
Acetates
Chlorides
Liquids
Nitrates
Phosphates
Phosphorus
Potassium
Precipitates
Sodium
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Zusammenfassung:A method is described for estimating polarographically the amount of phosphate in small volumes of liquid, where the phosphorus content lies between 0.5 and 10.5 μg. P/ml. with an error of ± 0.2 μg. P/ml. even when chloride, nitrate, and sulphate are present in excess. The method is based on precipitation of uranyl phosphate from uranyl acetate and estimation of the uranyl ion left in solution. A comparison is made with the colorimetric method of Berenblum and Chain.
ISSN:0022-0957
1460-2431
DOI:10.1093/jxb/3.1.47