Photometric cyclic-injection trace determination of phosphate ions in natural waters as an ion associate of phosphomolybdate with Astra Phloxine |
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| Authors: | A. V. Bulatov P. A. Ivasenko K. A. Subbotina A. B. Vishnikin L. N. Moskvin |
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| Affiliation: | 1.St. Petersburg State University,St. Petersburg,Russia;2.Dnepropetrovsk National University,Dnepropetrovsk,Ukraine |
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| Abstract: | A procedure for the automatic photometric determination of phosphate ions in natural waters was developed, based on the formation of a colored ion associate of the reduced form of phosphomolybdic heteropoly anion with a polymethine dye, Astra Phloxine. The detection limit was 5 μg P/L at the sample volume of 0.3 mL. |
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