Summary Brown‐coloured extracts are frequently obtained when chemical dissolution techniques are applied to soils. The colour, arising from the presence of organic material, interferes in subsequent spectrophotometric determinations of extractable inorganic components. A bromine oxidation method for the complete removal of interfering organic matter has been devised. This involves the oxidation of the organic matter with alkaline bromine solution and the subsequent removal of excess bromine by acid and heat treatment. To test the effectiveness of the method extracts from chemical dissolution procedures, containing organic matter, were examined before and after bromine treatment by ultra‐violet and infra‐red adsorption and mass spectrometric techniques.
No takes yet. Share an insight, caveat, or question.
Mitchell et al. (1974) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: