Mingcheng Jiang: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University Changchun 130012 PR China hmyuan@jlu.edu.cn.
Decheng Zeng: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University Changchun 130012 PR China hmyuan@jlu.edu.cn.
Xinxin Zheng: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University Changchun 130012 PR China hmyuan@jlu.edu.cn.
Hongming Yuan: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University Changchun 130012 PR China hmyuan@jlu.edu.cn. ORCID
Iron-based electrochemical catalysts used to modify electrodes for biosensing have received more attention from biosensor manufacturers because of their excellent biocompatibility and low cost. In this work, a fast-ion conductor potassium ferrite (KFeO) modified glassy carbon electrode (GCE) was prepared for detecting epinephrine (EP) by electrochemical techniques. The obtained KFeO/GCE electrode exhibited not only a wide linear range over EP concentration from 2 ��M to 260 ��M with a detection limit of 0.27 ��M (S/N = 3) but also high selectivity toward EP in the presence of common interferents ascorbic acid (AA) and uric acid (UA), as well as good reproducibility and stability.
