四磺基酞菁铁模拟酶酶联放大镧系螯合物偶合发光体系测定过氧化氢的研究; Application of a Lanthanide Fluorescence System Coupled with the Oxidation Reaction of p-HBA Catalyzed by FeTSPc to the Determination of H_2O_2 | |
陈小兰 ; 杨黄浩 ; 曲会英 ; 许金钩 | |
2003-05 | |
关键词 | 四磺基酞菁铁 酶联放大镧系螯合物发光法 过氧化氢 iron(III)-tetrasulfonatophthalocyanine(FeTSPc) mimetic enzyme-amplified lanthanide luminescence spectrometry hydrogen peroxide |
英文摘要 | [中文文摘]用四磺基酞菁铁(FeTSPc)催化H2O2氧化对羟基苯甲酸(p HBA)形成弱荧光的二聚产物———联二对 羟基苯甲酸,该产物在碱性条件下能与铽、EDTA形成三元配合物,产生较强的分子内敏化发光,表现出铽离子的特征荧光发射.据此,建立了雨水中过氧化氢和血清中葡萄糖的灵敏测定方法.在最佳条件下,过氧化氢的线性范围为0~2.0×10-5mol/L,检测限为2.5×10-8mol/L.[英文文摘]The oxidation product of phydroxybenzoic acid (pHBA) oxidated by hydrogen peroxide in the presence of iron(III)tetrasulfonatophthalocyanine (FeTSPc) forms a ternary fluorescent complex with Tb3+ in the alkaline medium. Based on this fact, a novel lanthanide fluorescence system with a coupling reaction was developed for the determination of hydrogen peroxide in rainwater and glucose in human serum. Under optimum conditions, the calibration graph was linear over the range of 0~2.0× 10 -5 mol/L.The detection limit of this method was 2.5 ×10- 8 mol/ L for hydrogen peroxide , and the standard deviation ( n = 9) was 3. 13 %for the determination of 1.0 ×10- 6 mol/ L hydrogen peroxide. This method can be applied to the determination of biochemical substances which produce hydrogen peroxide in oxidation reactions catalyzed by their oxidases. The feasibility in practical clinical analysis has been proven by the determination of glucose in human serum.; 福建省青年科技人才创新项目(2001J042)资助 |
语种 | 中文 |
出版者 | 厦门大学 |
内容类型 | 期刊论文 |
源URL | [http://dspace.xmu.edu.cn/handle/2288/3700] ![]() |
专题 | 化学化工-已发表论文 |
推荐引用方式 GB/T 7714 | 陈小兰,杨黄浩,曲会英,等. 四磺基酞菁铁模拟酶酶联放大镧系螯合物偶合发光体系测定过氧化氢的研究, Application of a Lanthanide Fluorescence System Coupled with the Oxidation Reaction of p-HBA Catalyzed by FeTSPc to the Determination of H_2O_2[J],2003. |
APA | 陈小兰,杨黄浩,曲会英,&许金钩.(2003).四磺基酞菁铁模拟酶酶联放大镧系螯合物偶合发光体系测定过氧化氢的研究.. |
MLA | 陈小兰,et al."四磺基酞菁铁模拟酶酶联放大镧系螯合物偶合发光体系测定过氧化氢的研究".(2003). |
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