Du har blitt omdirigert til din lokale versjon av den forespurte siden

AB-129

Potentiometric determination of orthophosphates, metaphosphates, and polyphosphates


Summary

After acid digestion, the sample solution is neutralized with sodium hydroxide to form sodium dihydrogen phosphate. An excess of lanthanum nitrate is added and the released nitric acid is then titrated with sodium hydroxide solution.

NaH2PO4 + La(NO3)3 → LaPO4 + 2 HNO3 + NaNO3

This determination method is suitable for higher phosphate concentrations.

Kontakt

Metrohm Nordic AS

Sandviksveien 26
1363 Høvik

Kontakt