非离子表面活性剂对流动注射电化学发光的增敏作用

研究了非离子表面活性剂聚乙二醇辛基苯基醚(Triton X-100)对流动注射电化学发光的影响。结果发现,Triton X-100对检测低浓度三联吡啶钌(Ru(bpy)23+)有增强作用,而且Triton X-100的引入可以改变流动注射电化学发光分析系统中Ru(bpy)23+-三正丙胺(TPA)反应电极电位。在检测电位1.35V,进样量100μL,进样速度50μL/s条件下,对Ru(bpy)23+进行检测,检出限(S/N=3)达1.0×10-10 mol/L,较添加Triton X-100前灵敏度提高50倍。     

Study of the Electrochemiluminescence Based on the Reaction of p-Hydroxyphenylpyruvic Acid with Tris(2,2'-bipyridine)ruthenium(Ⅱ)

p-hydroxyphenylpyruvic acid (pHPP) is an important intermediate in the metabolism of tyrosine. Under normal circumstances pHPF is readily converted to 2,5-dihydroxyphenylacetic acid by p-hydroxy-phenylpyruvate oxidase and the levels of pHPP encountered in blood and urine are extremely low. However, in a few individuals suffering from a congenital metabolic defect known as tyrosinemia, the oxidase is not available which leads to dramatic elevation of pHPP levels in blood and urine^[1]. Therefore, a selective and sensitive method for measuring pHPT is very useful for the diagnosis and treatment of such disease. In this paper the electrochemiluminescence(ECL) based on the reaction of pHPP with tris(2,2'-bipyridine)ruthenium(Ⅱ)[Ru(bpy)₃²⁺] in a flow injection system has been studied and a sensitive ECL method has been developed to detect pHPP in aqueous solution.     

Effect of Electron-Donating/Withdrawing for Hydroxyl Carboxylic Acid on the Tris(2,2,-bipyridyl) Ruthenium(Ⅲ) Chemiluminescence

Since 1966 Hercules and Lytle first reported visible light was generated upon a reduction of tris(2,2'-bipyridyl) ruthenium(Ⅲ), Ru(bpy)₃³⁺, with either hydrazine or hydroxide ion.     

联吡啶钌(Ⅱ)电致化学发光原理及其在流动注射分析和高效液相色谱法中的应用

介绍了联吡啶钌（Ⅱ）电致化学发光的原理以及在流动注射分析和高效液相色谱法中的应用情况，引用文献３６篇。     

联吡啶钌(Ⅱ)电致化学发光原理及其在流动注射分析和高效液相色谱法中的应用

 介绍了联吡啶钌（Ⅱ）电致化学发光的原理以及在流动注射分析和高效液相色谱法中的应用情况，３６篇。     

Electrochemiluminescence from tris(2,2′-bipyridyl) ruthenium (Ⅱ) in the presence of aminocarboxylic acid co-reactants

Due to the highly sensitive electrochemiluminescence (ECL), tris(2,2′-bipyridyl) ruthenium(II) (Ru(bpy)32+) is often used in the field of bioarrays with the help of co-reactants. However, the generally used co-reactant, tripropylamine (TPA), is toxic, corrosive and volatile. Therefore, the search for safe, sensitive and economical co-reactants is critical. Herein, three aminocarboxylic acids, ethylenediamine-tetraacetic acid (EDTA), nitrilotriacetic acid (NTA), and 2-hydroxyethylethylene diaminetriacetic ac...