Advanced Functionalized CeO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> Nanocomposite Sensor for Determination of Opioid Medication Tramadol Hydrochloride in Pharmaceutical Formulations

oleh: Seham S. Alterary, Maha F. El-Tohamy

Format: Article
Diterbitkan: MDPI AG 2022-04-01

Deskripsi

Background: The exceptional characteristics of cerium oxide (CeO<sub>2</sub>) and aluminum oxide (Al<sub>2</sub>O<sub>3</sub>) nanoscales have inspired significant attention to those nanocomposites as possible electroactive resources for applications of sensing and biosensing. Methods: In this research, an innovative new factionalized CeO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> nanocomposite membrane sensor was presented to assess tramadol hydrochloride (TRD) in marketable products. Results: Tramadol-phosphomolybdate (TRD-PM) was formed by mixing tramadol hydrochloride and phosphomolybdic acid (PMA) in the attendance of polymeric matrix and <i>o</i>-nitrophenyloctyl ether solvent mediator. With 1.0 × 10<sup>−10</sup>–1.0 × 10<sup>−2</sup> mol L<sup>−1</sup> as a range of linearity and E<sub>mV</sub> = (57.567 ± 0.2) log [TRD] + 676.29 as a regression equation, the functionalized sensor using TRD-PM-CeO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> nanocomposite showed great selectivity and sensitivity for the discriminating and measurement of TRD. Using the regression equation E<sub>mV</sub> = (52.143 ± 0.4) log [TRD] + 431.45, the unmodified coated wire sensor of TRD-PM, on the other hand, showed a Nernstian response between 1.0 × 10<sup>−6</sup> and 1.0 × 10<sup>−2</sup> mol L<sup>−1</sup>, Using the methodology’s specified guidelines, the proposed improved potentiometric system was validated against several criteria. Conclusion: The suggested method is suitable for the determination of TRD in its products.