Issue 21, 2022

Nitric acid concentration strongly influences low level uranium determination on PEDOT-PSS coated glassy carbon electrodes

Abstract

Understanding the parametric optimization and addition of modifications in existing techniques are the keys to successful research in the analytical sciences. The present study reports an electroanalytical technique by modifying an electrode with PEDOT-PSS and adjusting the analyte solution to lower acidity (0.05 M) levels. The proposed methodology achieved a detection limit of 1.24 ppb of uranium, which is far below the available concentrations of uranium in seawater; the WHO permissible limit for uranium in drinking water; and the allowed disposal limit for uranium in radioactive waste solutions. Redox characteristics and speciation analysis supported by theoretical prediction helped to understand the basic mechanism which lay behind the achievement of such low detection limits. The technique was successfully employed for uranium determination in real water samples and the results were validated by another independent technique (ICP-MS).

Graphical abstract: Nitric acid concentration strongly influences low level uranium determination on PEDOT-PSS coated glassy carbon electrodes

Supplementary files

Article information

Article type
Communication
Submitted
23 ⵖⵓⵛ 2022
Accepted
28 ⵛⵓⵜ 2022
First published
28 ⵛⵓⵜ 2022

Analyst, 2022,147, 4724-4729

Nitric acid concentration strongly influences low level uranium determination on PEDOT-PSS coated glassy carbon electrodes

R. Agarwal, R. M. R. Dumpala and M. K. Sharma, Analyst, 2022, 147, 4724 DOI: 10.1039/D2AN01390H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements