Springer Online Journal Archives 1860-2000
Chemistry and Pharmacology
Energy, Environment Protection, Nuclear Power Engineering
Abstract An isotope exchange method for the speciative determination of phosphorus (PO 4 3− , PO 3 3− and total P) in natural water samples is proposed by using the exchange system of moly bdophosphate in the aqueous phase and tetraphenylarsonium molybdophosophate in the organic phase. In this exchange system, only PO 4 3− exchanges and is determined. When the sample water is treated with Br2 water in advance, the amount of PO 4 3− +PO 3 3− can be obtained. When the sample is treated with H2SO4 and HNO3, then the amount of total P can be determined.
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