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Article

A Convenient Strategy for the Voltammetric Direct Determination of Ce(III) in Environmental Waters Using a Multi-Walled Carbon Nanotubes Modified Screen-Printed Carbon Electrode

by
Malgorzata Grabarczyk
*,
Marzena Fialek
and
Edyta Wlazlowska
Department of Analytical Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, 20-031 Lublin, Poland
*
Author to whom correspondence should be addressed.
Molecules 2024, 29(6), 1198; https://doi.org/10.3390/molecules29061198
Submission received: 12 February 2024 / Revised: 1 March 2024 / Accepted: 5 March 2024 / Published: 7 March 2024
(This article belongs to the Special Issue Heavy Metals and Metalloids in Environmental, Food and Nutrients Samples)
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Abstract

A simple and fast stripping voltammetric procedure for trace determination of Ce(III) in environmental water samples has been developed. The procedure of cerium determination in the presence of Alizarin S and acetate buffer was employed as the initial method. The adsorption material, multi-walled carbon nanotubes, was used as a screen-printed electrode modifier ensuring efficient accumulation of the Ce(III)-Alizarin S complex. The calibration graph for Ce(III) for an accumulation time of 60 s was linear in the range from 1 × 10−8 to 7 × 10−7 mol L−1 with the linear correlation coefficient r = 0.997. The detection limit was estimated from three times the standard deviation of low Ce(III) concentration and an accumulation time of 60 s was about 3.5 × 10−9 mol L−1. The proposed method was successfully applied to Ce(III) determination at trace levels in environmental water samples, such as river, lake and rain water with recoveries ranged from 93% to 98%.
Keywords: cerium; multiwalled carbon nanotubes; screen-printed electrode; stripping voltammetry method; application cerium; multiwalled carbon nanotubes; screen-printed electrode; stripping voltammetry method; application

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MDPI and ACS Style

Grabarczyk, M.; Fialek, M.; Wlazlowska, E. A Convenient Strategy for the Voltammetric Direct Determination of Ce(III) in Environmental Waters Using a Multi-Walled Carbon Nanotubes Modified Screen-Printed Carbon Electrode. Molecules 2024, 29, 1198. https://doi.org/10.3390/molecules29061198

AMA Style

Grabarczyk M, Fialek M, Wlazlowska E. A Convenient Strategy for the Voltammetric Direct Determination of Ce(III) in Environmental Waters Using a Multi-Walled Carbon Nanotubes Modified Screen-Printed Carbon Electrode. Molecules. 2024; 29(6):1198. https://doi.org/10.3390/molecules29061198

Chicago/Turabian Style

Grabarczyk, Malgorzata, Marzena Fialek, and Edyta Wlazlowska. 2024. "A Convenient Strategy for the Voltammetric Direct Determination of Ce(III) in Environmental Waters Using a Multi-Walled Carbon Nanotubes Modified Screen-Printed Carbon Electrode" Molecules 29, no. 6: 1198. https://doi.org/10.3390/molecules29061198

APA Style

Grabarczyk, M., Fialek, M., & Wlazlowska, E. (2024). A Convenient Strategy for the Voltammetric Direct Determination of Ce(III) in Environmental Waters Using a Multi-Walled Carbon Nanotubes Modified Screen-Printed Carbon Electrode. Molecules, 29(6), 1198. https://doi.org/10.3390/molecules29061198

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