Preventing phosphorus losses during perchloric acid digestion of sodium bicarbonate soil extracts

A - Papers appearing in refereed journals

Brookes, P. C. and Powlson, D. S. 1981. Preventing phosphorus losses during perchloric acid digestion of sodium bicarbonate soil extracts. Journal of the Science of Food and Agriculture. 32 (7), pp. 671-674.

AuthorsBrookes, P. C. and Powlson, D. S.
Abstract

Between 10 and 40% of P was lost during perchloric acid digestion of NaHCO3 soil extracts for measurement of organic P. This observation was confirmed by 32P tracer experiments. Addition of MgCl2 prevented P loss, reduced variability of replicate determinations and ensured virtually 100% recovery of P added to NaHCO3 solution and NaHCO3 soil extracts before digestion. Losses were due both to P volatilisation and conversion of P to forms other than ortho‐P in the digestion mixture.

Year of Publication1981
JournalJournal of the Science of Food and Agriculture
Journal citation32 (7), pp. 671-674
Digital Object Identifier (DOI)doi:10.1002/jsfa.2740320707
Open accessPublished as non-open access
Output statusPublished
Publication dates
Print01 Jul 1981
Online19 Sep 2006
Copyright licensePublisher copyright
PublisherWiley
ISSN0022-5142

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