Phosphate in Interstitial Waters of Anoxic Sediments: Oxidation Effects during Sampling Procedure

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Science  29 Jun 1973:
Vol. 180, Issue 4093, pp. 1362-1364
DOI: 10.1126/science.180.4093.1362


Oxidation during sampling procedures significantly decreases the inorganic phosphate concentrations of interstitial water rich in iron (II). All sampling and analytical procedures must be carried out in an inert atmosphere. Orthophosphate in the interstitial water of Cheaspeake Bay sediments, in equilibrium with vivianite, is a potential nutrient source for the overlying water.

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