电邮这篇文章 MICELLAR MICROEXTRACTION WITH ALKYL POLYGLYCOSIDES FOR PRECONCENTRATION AND SPECTROPHOTOMETRIC DETERMINATION OF PHOSPHATE IONS IN AQUEOUS MEDIA
- 作者: Timofeeva I.I.1, Kochetkova М.А.1, Dvoinykh D.D.2, Safinskaya Y.V.1, Zubakina Е.А.2, Bulatov А.V.1
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隶属关系:
- St. Petersburg State University, Institute of Chemistry
- St. Petersburg State Chemical and Pharmaceutical University
- 期: 卷 79, 编号 10 (2024)
- 页面: 1089-1096
- 栏目: ORIGINAL ARTICLES
- ##submission.dateSubmitted##: 17.02.2025
- URL: https://journal-vniispk.ru/0044-4502/article/view/280408
- DOI: https://doi.org/10.31857/S0044450224100032
- EDN: https://elibrary.ru/TFOKFT
- ID: 280408
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详细
A micellar microextraction technique has been developed for the preconcentration and spectrophotometric determination of phosphate ions in aqueous media based on the formation of a reduced formof molybdenum phosphoric heteropolyacid and its extraction from the aqueous phase into a supramolecularsolvent. In this case, in situ formation of the supramolecular solvent phase occurs when an amphiphile anda coacervation agent are introduced into the aqueous phase. The possibility of using biodegradable alkylpolyglycoside (C8-C10) as an amphiphile and carboxylic acids as coacervation agents has been studied. It isshown that in the acidic medium required for the formation of the reduced form of molybdenum phosphoric heteropolyacid, the phase of the supramolecular solvent is separated. The maximum absorbance of theextract is achieved using pivalic acid as a coacervation agent. The limit of detection (3σ) for phosphate ionsis 5 μg/L. The technique is environmentally friendly and does not require the use of expensive equipment.
作者简介
I. Timofeeva
St. Petersburg State University, Institute of Chemistry
Email: i.i.timofeeva@spbu.ru
Saint Petersburg, Russia
М. Kochetkova
St. Petersburg State University, Institute of ChemistrySaint Petersburg, Russia
D. Dvoinykh
St. Petersburg State Chemical and Pharmaceutical UniversitySaint Petersburg, Russia
Ya. Safinskaya
St. Petersburg State University, Institute of ChemistrySaint Petersburg, Russia
Е. Zubakina
St. Petersburg State Chemical and Pharmaceutical UniversitySaint Petersburg, Russia
А. Bulatov
St. Petersburg State University, Institute of ChemistrySaint Petersburg, Russia
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