Individual and Simultaneous Voltammetric Determination of Ultra- Trace Environmental Contaminant Dihydroxybenzene Isomers Based on a Composite Electrode Sandwich-like Structure

Authors

Ziad KhalifaFollow
Khalid Hassan Dr, Electrochemistry Research Laboratory, Physics and Mathematics Engineering Department, Faculty of Electronic Engineering, Menoufia University, MenoufFollow
Mohamed Fathi Abo Oura Mr, Department of Chemistry, Faculty of Science, El-Menoufia University, Shibin El-KomFollow
Abla Hathoot Prof, Department of Chemistry, Faculty of Science, El-Menoufia University, Shibin El-KomFollow
Magdi Abdel Azzem Prof, Department of Chemistry, Faculty of Science, El-Menoufia University, Shibin El-KomFollow

Document Type

Article

Publication Date

7-22-2020

Abstract

An advanced electroanalytical technique for the simultaneous assessment of environmental contaminant dihydroxybenzene isomers, catechol (CC), hydroquinone (HQ), and resorcinol (RC), has been investigated using palladium nanoparticles (PdNPs) incorporated onto a poly(1,5-diaminonaphthalene) (DAN) matrix over a glassy carbon electrode (GCE). Concurrently, these types of phenols can be assessed by the PdDAN/GCE modified electrode employing square wave voltammetry and cyclic voltammetry (CV) techniques under optimal conditions. This modified electrode has demonstrated linear responses for CC, HQ, and RC from 50.0 to 1000.0 mM; concomitantly, low detection limits of 0.22, 0.22, and 0.47 nM and low quantification limits of 0.740, 0.758, and 1.590 nM, have been, respectively, shown. Successfully, the simultaneous assessment of the three isomers in river stream water, tap water, and underground water has been implemented via the modified electrode under investigation. In comparison to reported studies, the PdDAN catalytic electrode has shown an effective sensitivity, leverage reproducibility, long-term stability, and excellent anti-interference capability for the determination of dihydroxybenzene isomers.

Recommended Citation

Khalifa, Ziad; Hassan, Khalid Dr; Abo Oura, Mohamed Fathi Mr; Hathoot, Abla Prof; and Abdel Azzem, Magdi Prof, "Individual and Simultaneous Voltammetric Determination of Ultra- Trace Environmental Contaminant Dihydroxybenzene Isomers Based on a Composite Electrode Sandwich-like Structure" (2020). Chemical Engineering. 118.
https://buescholar.bue.edu.eg/chem_eng/118