LaNi0.5Ti0.5O3/CoFe2O4-based sensor for sensitive determination of paracetamol |
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| Authors: | Daixin Ye Yanhong Xu Liqiang Luo Yaping Ding Yulong Wang Xiaojuan Liu |
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| Affiliation: | (1) Department of Chemistry, Shanghai University, Shanghai, 200444, People’s Republic of China;(2) Shanghai Key Laboratory of Modern Metallurgy and Materials Processing, School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, People’s Republic of China; |
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| Abstract: | A novel electrochemical sensor based on LaNi0.5Ti0.5O3/CoFe2O4 nanoparticle-modified electrode (LNT–CFO/GCE) for sensitive determination of paracetamol (PAR) was presented. Experimental conditions such as the concentration of LNT–CFO, pH value, and applied potential were investigated. Under the optimum conditions, the electrochemical performances of LNT–CFO/GCE have been researched on the oxidation of PAR. The electrochemical behaviors of PAR on LNT–CFO/GCE were investigated by cyclic voltammetry. The results showed that LNT–CFO/GCE exhibited excellent promotion to the oxidation of PAR. The over-potential of PAR decreased significantly on the modified electrode compared with that on bare GCE. Furthermore, the sensor exhibits good reproducibility, stability, and selectivity in PAR determination. Linear response was obtained in the range of 0.5 to 901 μM with a detection limit of 0.19 μM for PAR. |
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