Bedir, YunusYardim, Yavuz2026-04-022026-04-0220260925-96351879-006210.1016/j.diamond.2026.113470https://hdl.handle.net/123456789/30033https://doi.org/10.1016/j.diamond.2026.113470An electrochemical sensing method for myricetin was developed using square-wave voltammetry with a bare boron-doped diamond (BDD) electrode. In Britton-Robinson (BR) buffer (0.04 M, pH 4.0), cyclic voltammetry revealed that myricetin undergoes a diffusion-controlled irreversible oxidation, producing two clear anodic peaks at about +0.49 V (PA1) and +0.81 V (PA2) versus Ag/AgCl. The electrochemical oxidation behavior of myricetin was markedly affected by the solution pH as well as the nature of the supporting electrolyte, and its determination was carried out using the two observed anodic peaks. Under the optimized experimental parameters, the anodic peaks current increased proportionally with myricetin concentration, spanning 0.005-0.1 & micro;g mL- 1 for PA1 and 0.25-5.0 & micro;g mL- 1 for both PA1 and PA2 in BR buffer at pH 4.0. The method achieved detection limits of 0.0015 & micro;g mL- 1 (PA1) and 0.075 & micro;g mL- 1 (PA2). The proposed method was effectively employed for the quantification of myricetin in dietary supplement samples, and its accuracy was verified by comparison with results obtained from HPLC.eninfo:eu-repo/semantics/closedAccessBoron-Doped Diamond ElectrodeDietary SupplementsElectrochemical SensingMyricetinVoltammetryArticle