Maala, M., Abd EL-Atiy, N., Mohamed, A., Rashed, M. (2023). Electrochemical sensor based on a poly-murexide modified carbon paste electrode for determination of fluoroquinolone antibiotic ciprofloxacin. Aswan University Journal of Environmental Studies, 3(4), 401-417. doi: 10.21608/aujes.2022.170929.1103
Mahmud khodari Maala; Nahla zakaria Abd EL-Atiy; Adila EL-Saady Mohamed; Mohamed Nageeb Rashed. "Electrochemical sensor based on a poly-murexide modified carbon paste electrode for determination of fluoroquinolone antibiotic ciprofloxacin". Aswan University Journal of Environmental Studies, 3, 4, 2023, 401-417. doi: 10.21608/aujes.2022.170929.1103
Maala, M., Abd EL-Atiy, N., Mohamed, A., Rashed, M. (2023). 'Electrochemical sensor based on a poly-murexide modified carbon paste electrode for determination of fluoroquinolone antibiotic ciprofloxacin', Aswan University Journal of Environmental Studies, 3(4), pp. 401-417. doi: 10.21608/aujes.2022.170929.1103
Maala, M., Abd EL-Atiy, N., Mohamed, A., Rashed, M. Electrochemical sensor based on a poly-murexide modified carbon paste electrode for determination of fluoroquinolone antibiotic ciprofloxacin. Aswan University Journal of Environmental Studies, 2023; 3(4): 401-417. doi: 10.21608/aujes.2022.170929.1103
Electrochemical sensor based on a poly-murexide modified carbon paste electrode for determination of fluoroquinolone antibiotic ciprofloxacin
1Chemistry department, Faculty of Science, South Valley University, Qena, Egypt
2Chemistry department, faculty of science, Aswan University, Aswan, Egyrt
3Chemistry department, Faculty of Science, Aswan University, Aswan, Egypt
Abstract
Since the fluoroquinolone family of antibiotic drugs has recently been widely utilized to treat pneumonia during the COVID-19 pandemic spread, we shed light on them in our work. In the current investigation, a poly-murexide modified carbon paste electrode (PMUX/CPE) was utilized to detect second-generation fluoroquinolone antibiotic ciprofloxacin (CFLOX) in human serum samples and pharmaceutical formulations. PMUX/CPE showed high accuracy, good sensitivity, and selectivity toward CFLOX. For the morphological analysis of the fabricated sensor, scanning electron microscopy (SEM) was used. PMUX/CPE had an outstanding ability to enhance electron transfer compared to the unmodified electrode. The obtained differential pulse voltammograms (DPVs) exhibited that under ideal experimental conditions, the oxidation peak currents of CFLOX were linearly proportional to their concentration in the range of 0.05 to 3.00 µM, with a detection limit (LOD) and quantification limit (LOQ) of 0.0057 µM, and 0.0190 µM, respectively. With a recovery of 93.25%–104%, this method was effectively applied to detect CFLOX concentrations in pharmaceutical tablets and spiked human serum.
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