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Identification of inorganic pyrophosphate in alkaline extracts of soil
Author(s) -
Anderson G.,
Russell J. D.
Publication year - 1969
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740200204
Subject(s) - chemistry , pyrophosphate , alkaline hydrolysis , salt (chemistry) , alkali soil , hydrolysis , barium , phosphate , extraction (chemistry) , hydrochloric acid , chromatography , ion chromatography , soil water , inorganic chemistry , biochemistry , enzyme , organic chemistry , geology , soil science
An acid‐labile phosphate has been detected in alkaline extracts of four acid soils, and has been isolated and purified by ion‐exchange and paper chromatography. Its chromatographic properties, its rate of hydrolysis in hydrochloric acid‐and the infra‐red spectrum of its barium salt show that it is inorganic pyrophosphate. In three of the soils the amount was in the range 2.1–2.6 ppm P, compared with only 0.5 in the fourth but the investigation was essentially qualitative and losses may have occurred during isolation. the phosphate may occur in the soil in inorganic form or alternatively as an ester which is mineralised during extraction.