EtOH-H2O2-OH-新化学发光体系的发现及其应用

本文研究和发现了一些醇类在碱性条件下和H2O2作用可产生化学发光的事实。并对发光反应的机理作了简单的探讨,通过测试说明化学发光反应主要发生在醇氧化成醛这一步。文章也对醉系化学发光量子效率进行了简易法测定,对于已往关于醇增强其它体系化学发光说法也进行了较新的论述。 本文研究了醇系化学发光在金属离子分析方面的应用。发现Co(Ⅱ),Fe(Ⅲ),Ni(Ⅱ),Pb(Ⅱ),Hg(Ⅱ),Cr(Ⅲ),Ag(Ⅰ),Mn(Ⅱ),Eu(Ⅲ),和Cu(Ⅱ)等离子在有利条件下对此发光反应皆有不同程度的催化作用,这是分析测定的基础。文章着重研究了对钴的单一化学发光分析条件,应用此法测钴检测限为2×10-8克/ml。

THE ESTABLISHMENT OF A NEW CHEMILUMINESCENCE SYSTEM EtOH-H2O2-OH AND IT'S APPLICATION TO ANALYTICAL CHEMISTRY

The present paper studied and discovered the fact that some alcohols arose chemiluminescence in alkaline H2O2. The mechanism of such chemi-luminescence is discussed in brief and is shown that the chemiluminescence occurs in the step of alcohol oxidized into aldehyde. The quantum yield is also estimated by simple methods. As for the idea of the enhancement of CL by the alcohol, the present paper gives a newer explanation.The said system EtOH-H2O2-OH- has been applied to the determination of metal ions, since we found that Co(Ⅱ), Fe(Ⅱ), Ni(Ⅱ), Pb(Ⅱ), Hg (Ⅱ), Cr(Ⅲ), Ag(Ⅰ), Mn(Ⅱ), Eu(Ⅲ), and Cu(Ⅱ) could be used as an analyze respectively to catalyze the oxidation reaction of H2O2 with alcohols under favorable conditions. The procedure of determining Co(Ⅱ) by the application of the said system has been shown in detail, and the detection limit of the Co(Ⅱ) is calculated as 2×10-8g/ml.