Electrochemical determination of dinitolmide in poultry product samples using a highly sensitive Mn2O3/MCNTs-NPs carbon paste electrode aided by greenness assessment tools
Khadiga Mohamed Kelania b, Ahmed M. Abdel‐Raoofc d✉, Ashraf Mahmoud Ashmawye, Gamal A. Omranf, Samir M. Morshedyf, Ahmed M. Wafaa Nassarb, Wael Talaatf, Elsayed Elgazzarg
- aAnalytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini St, ET-11562 Cairo, Egypt
- bAnalytical Chemistry Department, Faculty of Pharmacy, Modern University for Technology and Information (MTI), Cairo, Egypt
- cAnalytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, 11751, Cairo, Egypt. Electronic address: Ahmedmeetyazeed79@Azhar.edu.eg
- dAnalytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, 11751, Cairo, Egypt
- eChemistry Department, Faculty of Science (boys), Al-Azhar University, 11884 Cairo, Egypt
- fDepartment of Pharmaceutical Analytical Chemistry, Damanhour University, Damanhour, Egypt
- gDepartment of Physics, Faculty of Science, Suez Canal University, Ismailia, Egypt
- ✉Corresponding author
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Abstract
In this paper, chemically modified carbon paste Mn2O3/MCNTs-NPs electrode for estimation of dinitolmide (DOM) utilizing square wave voltammetry method (SWV) was developed. The study investigated the electrochemical behavior of DOM, and the morphology of the modified electrode was evaluated by Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM). The voltammetric behavior of DOM at modified electrode was recorded at a scan rate of 100 mVs-1 against Ag/AgCl reference electrode in phosphate buffer pH 4.0 within linearity range 2-12 µM, LOQ, and LOD of 1.8 and 0.594 µM, respectively, with average % recovery of (100.89 ± 0.795). GAPI and Analytical Eco-Scale tools were applied for greenness assessment. Specificity and interference study was valid for the proposed method; allowing DOM to be determined in its acidic degradation and its major interference drug. The proposed method was successfully employed to quantify DOM in bulk powder, egg, and frozen cuts-up chicken muscle samples.