Original scientific paper
https://doi.org/10.5599/jese.2580
Screen printed graphite electrode modified with two-dimen-sional leaf-like zeolitic imidazolate framework-L (Zn) for efficient electrochemical sensing of sulphite
Satar Jabbar Rahi Algraittee
; College of Medicine, University of Kerbala, Kerbala, Iraq
Ban Waheed Hussein Bdair
; Department of Medical Microbiology, College of Medicine, University of Kerbala, Kerbala, Iraq
Firas Abdul Abass Sukir
; Department of Radiology, College of Health & Medical Technology, Sawa University, Iraq
Raed Muslim Muhibes
; Department of Biochemistry, College of Medicine, Misan University, Misan, Iraq
Mustafa Mudhafar
; Department of Medical Physics, Faculty of Medical Applied Sciences, University of Kerbala, 56001, Karbala, Iraq
Qais R. Lahhob
; Collage of Pharmacy, National University of Science and Technology, Dhi Qar, 64001, Iraq
Abstract
In this paper, we describe the use of a screen-printed graphite electrode modified with a two-dimensional leaf-like zeolitic imidazolate framework-L (Zn), ZIF-L (Zn) for the deter¬mination of sulphite. We started by using linear sweep voltammetry to investigate the redox properties of the modified electrode at different scan rates (10 to 400 mV s-1). Next, we evaluated sulphite oxidation in the modified electrode. Using differential pulse voltammetry (DPV), the linear dynamic range of 0.04-900.0 µM and the limit of detection (3s/m) of 0.01 μM were obtained. DPV was also used to quantify sulphite in various real samples using the standard addition method.
Keywords
Differential pulse voltammetry; metal-organic frameworks; electrochemical sensors; chemically modified electrodes; real sample analysis
Hrčak ID:
328915
URI
Publication date:
23.2.2025.
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