A new extraction method for the spectrophotometric determination of phosphates |
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| Authors: | V. Macháček M. Malát |
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| Affiliation: | 1. Research Institute of Crop Production, 161 06 Prague 6 Czechoslovakia;2. Department of Analytical Chemistry, Charles University, 128 40 Prague 2, Czechoslovakia |
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| Abstract: | The paper describes new procedures of extraction spectrophotometric determination of phosphates, based on the extraction of the ion associates of complex anions of 12-molybdatophosphoric acid, its “molybdenum blue,” and anion of 11-molybdatovanadatophosphoric acid with a cation of cationogenic tenside. The methods were applied to the determination of phosphorus in the samples of soil, plants, and water from lysimetric studies. |
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