ArticleADMET & DMPK2025
Electrochemical sensing and quantification of theobromine in cocoa products at polyvaline functionalized graphite paste sensor electrode.
Article in ADMET & DMPK, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
2 authors.
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Abstract
Background and purpose: Theobromine (THB), an alkaloid present in various plants, is widely used in pharmaceutical formulations and food products. Increased consumption leads to health risks in both humans and animals. Experimental approach: An electrochemically polymerized polyvaline-modified graphite paste sensor (PVMGPS) was developed in this work to investigate the mechanistic and kinetic pathways of the electrooxidation of THB. Electrochemical impedance spectroscopy and scanning electron microscopy were used for characterizing the designed sensors. The fabricated PVMGPS under optimal conditions produced enhanced current responses compared to the bare graphite paste sensor (BGPS). Multiple parameters were investigated using cyclic voltammetry and differential pulse voltammetry. Key results: The electroactive surface areas of the BGPS and PVMGPS were evaluated as 0.025 and 0.252 cm Conclusions: The outcome of the analysis substantiated the efficacy, selectivity and sensitivity of the developed novel sensor for THB detection.
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