Adsorption-Luminescent Determination of Y(III) Using 8-oxyquinoline Derivatives Fixed on the Silica Surface
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Published:2021-09
Issue:3
Volume:14
Page:337-349
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ISSN:1998-2836
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Container-title:Journal of Siberian Federal University. Chemistry
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language:
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Short-container-title:J. Sib. Fed. Chem.
Author:
Buyko Olga V., ,Losev Vladimir N.,Shimanskii Alexander F.
Abstract
Silicas, sequentially modified with polyhexamethylene guanidine and 8-hydroxyquinoline‑5-sulfonic acid (SiO2-PHMG‑oxine) or 7-iodine‑8-hydroxyquinoline‑5-sulfonic acid (SiO2-PHMG‑ferron), have been proposed for the adsorption-luminescent determination of Y(III) in natural waters. Complex compounds of Y(III) are formed on the surface of adsorbents during adsorption from solutions at pH 6–7, which luminesce in a yellow-green color (λlum = 485 nm (SiO2-PHMG‑oxine) and λlum = 490 nm (SiO2-PHMG‑ferron)). This is the basis for the method of its sorption-luminescent determination. The detection limit of Y(III), calculated according to the 3s criterion, is 1 μg/L (SiO2-PHMG‑oxine) and 2 μg/L (SiO2-PHMG‑ferron), the analytical range is 4–400 μg/L (SiO2-PHMG‑oxine) and 6–500 μg/L (SiO2-PHMG‑ferron). The developed methods were tested in the determination of yttrium in the Yenisei and Kacha rivers of the Krasnoyarsk Krai
Publisher
Siberian Federal University
Subject
General Chemical Engineering,General Chemistry