Luminescence Determination of Copper(I), Silver(I), Gold(I), and Platinum(II) Using 2-Mercapto-5-Benzimidazolesulfonic Acid, also Immobilized on a Silica Surface
- Authors: Didukh S.L.1, Kashkevich A.I.1, Trofimchuk A.K.2, Siryk E.A.2, Losev V.N.1, Metelitsa S.I.1
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Affiliations:
- Kristall Research Engineering Center
- Taras Shevchenko Kiev National University
- Issue: Vol 73, No 1 (2018)
- Pages: 50-57
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182952
- DOI: https://doi.org/10.1134/S1061934818010045
- ID: 182952
Cite item
Abstract
2-Mercapto-5-benzimidazolesulfonic acid (MBI), also noncovalently bound to a silica surface, is proposed as a reagent for the low-temperature luminescence determination of Cu(I), Ag(I), Au(I), and Pt(II). Luminescence excitation and luminescence spectra of metal complexes with MBI in solutions and on the adsorbent surface represent broad unstructured bands in the regions 250–400 and 450–700 nm, respectively. The developed procedures for the luminescence and sorption–luminescence determination of Cu, Ag, Au, and Pt with limits of detection at a level of 0.001–0.01 μg on 0.1 g of adsorbent are tested in the determination of metals in natural and industrial samples.
About the authors
S. L. Didukh
Kristall Research Engineering Center
Email: losevvn@gmail.com
Russian Federation, Krasnoyarsk, 660041
A. I. Kashkevich
Kristall Research Engineering Center
Email: losevvn@gmail.com
Russian Federation, Krasnoyarsk, 660041
A. K. Trofimchuk
Taras Shevchenko Kiev National University
Email: losevvn@gmail.com
Ukraine, Kiev, 01033
E. A. Siryk
Taras Shevchenko Kiev National University
Email: losevvn@gmail.com
Ukraine, Kiev, 01033
V. N. Losev
Kristall Research Engineering Center
Author for correspondence.
Email: losevvn@gmail.com
Russian Federation, Krasnoyarsk, 660041
S. I. Metelitsa
Kristall Research Engineering Center
Email: losevvn@gmail.com
Russian Federation, Krasnoyarsk, 660041