Characterization of poly (safranine T)-modified electrode and application for simultaneous determination of epinephrine and uric acid coexisting with ascorbic acid

Journal of the Brazilian Chemical Society

Kang, Weijun¹  Niu, Lingmei¹  Li, Shan¹  Hebei Medical University, Shijiazhuang, China¹  Lian, Kaoqi¹ 

关键词: safranine T;    glassy carbon electrode;    epinephrine;    uric acid;    ascorbic acid;   

DOI  :  10.1590/S0103-50532011000200003

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

A poly(safranine T) modified glassy carbon electrode was used for the simultaneous determination of epinephrine (EP) and uric acid (UA) in the presence of ascorbic acid (AA). Enhanced electrocatalytic currents and well-separated potentials for EP and UA were observed. The anodic peak currents of EP and UA were linear to the corresponding concentrations in the range of 6.0×10-6-1.0×10-4 mol L-1. In addition, the modified electrode showed good sensitivity and stability. Satisfactory results were achieved for the determination of EP and UA in injection solutions of EP and in human urine samples.

【 授权许可】

Unknown