| Abstrakt: |
Chloramphenicol (CAP) is an antibiotic that is used to treat a range of human ailments and is also utilized in animal medicine. However, long-term usage of CAP can have substantial side effects in humans. Hence, precise and sensitive analytical approaches for CAP detection are required. We developed an electrochemical sensor based on a ZnO/MWCNT nanocomposite for the efficient measurement of chloramphenicol (CAP) in this study. Aqueous leaf extract of Rhoeo discolor (Tradescantia spathacea) was employed in the green production of ZnO nanoparticles. A simple sonochemical approach was used to combine ZnO nanoparticles with MWCNT. UV–Visible spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), elemental mapping, Transmission Electron Microscopy (TEM), and Fourier transform infrared spectroscopy (FTIR) have been utilized to describe the synthesized ZnO nanoparticles. The electrochemical performance of the ZnO/MWCNT/graphite electrode was studied using cyclic voltammetry (CV) and linear sweep voltammetry (LSV). The effect of loading mass, pH, and scan rate on electrode reaction was also determined. The ZnO/MWCNT/graphite electrode has a linear response in the range of 1 to 250 μM, a high sensitivity of 11.15 μA μM−1 cm−2, with a LOD of 0.35 μM and LOQ of 1.16 μM. It also has good reproducibility and stability. Real samples like honey and milk were used to illustrate the sensor's viability. [ABSTRACT FROM AUTHOR] |
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