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Determination of microgramme quantities of dissolved sulphate in surface waters, soils and plants
Author(s) -
Little I. P.,
Reeve R.,
Proud G. M.,
Lulham Ann
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.2740201111
Subject(s) - soil water , environmental chemistry , chemistry , sulfur , atomic absorption spectroscopy , surface water , environmental science , environmental engineering , soil science , physics , organic chemistry , quantum mechanics
A rapid and simple method is described for determining sulphate in surface waters and water extracts of soils by precipitating it as lead sulphate in 40% ethanol and measuring the residual lead in solution by means of an atomic absorption spectrophotometer. Sulphate may be determined in concentrations as low as 1 ppm in the solutions. This method can also be used to determine sulphur in plant material after it has been converted to dissolved sulphate by combustion in an oxygen‐filled flask.