{"title":"Voltammetric Determination of Dopamine in the Presence of Caffeine Using a Modified Glassy Carbon Electrode","authors":"Maryam Ebrahimi, Hadi Beitollahi","doi":"10.3103/S1068375523050071","DOIUrl":null,"url":null,"abstract":"<div><div><h3>\n <b>Abstract</b>—</h3><p>In this work, an electrochemical sensor based on CuO nanoflowers modified glassy carbon electrode (GCE) was developed for the voltammetric determination of dopamine. The CuO nanoflowers modified GCE showed good catalytic ability for the determination of dopamine. The differential pulse voltammetry investigation showed a linear relation between the dopamine current and its concentration within the range of 0.1–800.0 μM, with a limit of detection of 0.03 ± 0.001 μM. Also, the modified electrode was used for the simultaneous determination of dopamine and caffeine. Both dopamine and caffeine exhibited non-overlapping voltammetric peaks at 235 and 1390 mV, respectively, using CuO nanoflowers/GCE. Finally, the analytical performance of the developed sensor was evaluated for the analysis of dopamine and caffeine in real samples, which showed satisfactory results.</p></div></div>","PeriodicalId":49315,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"59 5","pages":"634 - 643"},"PeriodicalIF":1.1000,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface Engineering and Applied Electrochemistry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.3103/S1068375523050071","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 0
Abstract—
In this work, an electrochemical sensor based on CuO nanoflowers modified glassy carbon electrode (GCE) was developed for the voltammetric determination of dopamine. The CuO nanoflowers modified GCE showed good catalytic ability for the determination of dopamine. The differential pulse voltammetry investigation showed a linear relation between the dopamine current and its concentration within the range of 0.1–800.0 μM, with a limit of detection of 0.03 ± 0.001 μM. Also, the modified electrode was used for the simultaneous determination of dopamine and caffeine. Both dopamine and caffeine exhibited non-overlapping voltammetric peaks at 235 and 1390 mV, respectively, using CuO nanoflowers/GCE. Finally, the analytical performance of the developed sensor was evaluated for the analysis of dopamine and caffeine in real samples, which showed satisfactory results.
期刊介绍：
Surface Engineering and Applied Electrochemistry is a journal that publishes original and review articles on theory and applications of electroerosion and electrochemical methods for the treatment of materials; physical and chemical methods for the preparation of macro-, micro-, and nanomaterials and their properties; electrical processes in engineering, chemistry, and methods for the processing of biological products and food; and application electromagnetic fields in biological systems.
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