Levent, AbdulkadirAltun, AhmetTaş, SüleymanYardım, YavuzŞentürk, Zühre2021-03-232021-03-232015-03-20Levent, A., Aitun, A., Taş, S., Yardım, Y., Şentürk, Z. (2015). Voltammetric behavior of testosterone on bismuth film electrode: Highly sensitive determination in pharmaceuticals and human urine by square‐wave adsorptive stripping voltammetry. Electroanalysis, 27 (5), pp. 1219-1228. https://doi.org/10.1002/elan.201400627.1521-4109https://doi.org/10.1002/elan.201400627https://analyticalsciencejournals.onlinelibrary.wiley.com/doi/epdf/10.1002/elan.201400627https://hdl.handle.net/20.500.12402/2757In this paper, an electrochemical application of bismuth‐film electrode (BiFE) fabricated via ex‐situ electrodeposition onto a glassy carbon electrode for testosterone determination was investigated in aqueous and aqueous/surfactant solutions. In cyclic voltammetry, the compound showed one irreversible and adsorption‐controlled reduction peak. The BiFE revealed good linear response in the examined concentration range of 1 to 45 nmol L−1 testosterone in BrittonRobinson buffer, pH 5.0 containing 3 mmol L−1 cetyltrimethylammonium bromide. The limit of detection was 0.3 nmol L−1 (0.09 ng mL−1). Finally, the BiFE was satisfactorily applied for quantitation of testosterone in both pharmaceutical (oil‐based ampoule) and biological (human urine) samples.eninfo:eu-repo/semantics/openAccessAttribution 3.0 United StatesAdsorptive Stripping VoltammetryBismuth-Film ElectrodeCetyltrimethylammonium BromidePharmaceutical and Biological SamplesTestosteroneArticle27512191228Q2N/A