分析化学2011，Vol.39Issue(8)：1233-1237,5.DOI:10.3724/SP.J.1096.2011.01233
基于电纺碳纳米纤维材料的阿托品固态电化学发光传感器
A Novel Electrochemiluminescence Sensor Based on Tris(2,2'-bipyridyl)ruthenium(Ⅱ) Immobilized in Nafion/Electrospun Carbon Nanofibers Composite Films
摘要
Abstract
A novel electrochemiluminescence (ECL) sensor based on tris(2,2'-bipyridyl)ruthenium(Ⅱ) (Ru(bpy)32+)/electrospun carbon nanofiber (CNF)/Nafion composite films was demonstrated for the determination of atropine. The voltammetric and ECL behaviors of the presented sensor were investi-gated. The results indicated that the addition of CNF in the composite films could increase the current and ECL intensity of Ru(bpy)32+ , and the immobilized Ru(bpy)32+ performed a diffusion-controlled process. Under the optimal experimental conditions, the proposed ECL sensor gave a wide linear range (r= 0.9967) from 1 × 10-7 mol/L to 1 × 10-4 mol/L with a detection limit (S/N = 3) of 1×10-7 mol/L for atropine. The relative standard deviation for 1 × 10-5 mol/L atropine is 2. 9% (n = 7) , and the present ECL sensor displays outstanding stability. The ECL sensor was also demonstrated for the determina-tion of atropine in human urine sample and satisfactory results were obtained.关键词
电纺/碳纳米纤维/三联吡啶钌/纳芬(Nafion)/电化学发光/阿托品/化学修饰电极Key words
Electrochemiluminescence/ Tris(2,2'-bipyridyl)ruthenium(Ⅱ)/ Carbon nanofiber/ Nafion/ Atropine/ Modified electrode引用本文复制引用
杨秀云,徐春荧,袁柏青,由天艳..基于电纺碳纳米纤维材料的阿托品固态电化学发光传感器[J].分析化学,2011,39(8):1233-1237,5.基金项目
本文系国家自然科学基金(No.20875085)和中科院知识创新工程重要方向性项目(No.KJCX2-YW-H11)资助 （No.20875085）
