Novel Amperometric Mercury-Selective Sensor Based on Organic Chelator Ionophore-Reference-Cited by-同舟云学术

Novel Amperometric Mercury-Selective Sensor Based on Organic Chelator Ionophore

Published:2023-03-20 Issue:6 Volume:28 Page:2809
ISSN:1420-3049
Container-title:Molecules
language:en
Short-container-title:Molecules

Author:

Elsebai Basant¹²,Ghica Mariana Emilia²³^ORCID,Abbas Mohammed Nooredeen⁴,Brett Christopher M. A.²^ORCID

Affiliation:

1. Water Pollution Research Department, Environmental and Climate Changes Research Institute, National Research Centre, El-Buhouth St., Dokki, Giza 12622, Egypt

2. Department of Chemistry, CEMMPRE, ARISE, University of Coimbra, 3004-535 Coimbra, Portugal

3. Department of Chemical Engineering, CIEPQPF, University of Coimbra, 3030-790 Coimbra, Portugal

4. Applied Organic Chemistry Department, Chemical Industries Research Institute, National Research Centre, El-Buhouth St., Dokki, Giza 12622, Egypt

Abstract

A novel amperometric sensor for the direct determination of toxic mercury ions, Hg2+, based on the organic chelator ionophore N, N di (2-hydroxy-5-[(4-nitrophenyl)diazenyl]benzaldehyde) benzene-1,2-diamine (NDBD), and multiwalled carbon nanotubes (MWCNT) immobilized on a glassy carbon electrode surface was developed. The parameters influencing sensor performance including the ionophore concentration, the applied potential, and electrolyte pH were optimized. The sensor response to Hg2+ was linear between 1–25 µM with a limit of detection of 60 nM. Interferences from other heavy metal ions were evaluated and the sensor showed excellent selectivity towards Hg2+. The method was successfully applied to the determination of mercury ions in milk and water samples.

Funder

European Commission

Fundação para a Ciência e Tecnologia

Publisher

MDPI AG

Subject

Chemistry (miscellaneous),Analytical Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Molecular Medicine,Drug Discovery,Pharmaceutical Science

Link

https://www.mdpi.com/1420-3049/28/6/2809/pdf

Reference48 articles.

1. Novel solid-state mercury(II)-selective electrode based on symmetrical sulfur-containing carrier;Kermani;J. Mol. Liq.,2015

2. Conductive electrospun nanofibers containing cellulose nanowhiskers and reduced graphene oxide for the electrochemical detection of mercury (II);Teodoro;Carbohydr. Polym.,2017

3. Voltammetric determination of metal ions beyond mercury electrodes. A review;Serrano;Anal. Chim. Acta,2017

4. Electrochemical sensing of mercury ions in electrolyte solutions by nitrogen-doped graphene quantum dot electrodes at ultralow concentrations;Fu;J. Molec. Liq.,2020

5. Analytical methods for mercury speciation, detection, and measurement in water, oil, and gas;Saleh;TrAC—Trends Anal. Chem.,2020

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