Abstract
An electrochemical method has described for the voltammetric determination and oxidation of caffeic acid (CA) at a glassy carbon electrode (GCE) modified carbon/iron-based active catalyst as a sensing platform. In this study, we have developed a highly sensitive electrochemical CA sensor with f-MWCNTs/α-NaFeO2 composite, which was developed by a simple ultrasonication method. The microstructural features of the f-MWCNTs/α-NaFeO2 composite characterized by different physicochemical and analytical techniques. Under the optimized condition, the developed sensor archive the ultra-sensitivity (44.6859 μA μM−1cm−2) at a lower concentration with excellent linearity (R2 = 0.9943) and which shows low detection limit (LOD = 0.002 μM) and Limit of quantification (LOQ = 0.0068 μM) by using differential pulse voltammetry (DPV) technique. The suggested sensor may improve the effective and efficient platform to the determination of CA in the healthcare system.
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