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化学学报
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化学学报 ›› 2001, Vol. 59 ›› Issue (6): 945-949. 上一篇    下一篇

研究论文

电致初生态氧化剂的化学发光行为研究及其分析应用

郑行望;杨梅;章竹君   

  1. 陕西师范大学化学系.西安(710062);辽宁师范大学化学系.大连(116022)
  • 发布日期:2001-06-15

The investigation of chemiluminescence reaction characteristic of the in situ electrogenerated Br2 and its anaytical application for isoniazid

Zheng Xingwang;Yang Mei;Zhang Zhujun   

  1. Shanxi Normal Univ, Dept Chem.Xian(710062);Liaoning Normal Univ., Dept of Chem.Dalian(116022)
  • Published:2001-06-15

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599

被引次数

17 | 5

基于一种新型流通电解池的设计，结合恒电流电解技术与流动注射技术，使电生于电极表面附近的溴具有初生态的化学发光反应活性。它可直接氧化异烟肼而产生强度高、反应速度快的化学发光现象，据此建立了测定异烟肼的电化学发光新方法，同时，提出一种研究、探索初生态试剂化学发光分析的新思想和新方法。

关键词: 初生态, 氧化剂, 溴, 电解槽, 流动注射分析, 化学发光, 电致发光, 异烟肼

By both designing a novel electrolytic flow cell and using the flow- injection techniuqe, the nascent Br2 was in situ electrogenerated on the surface of platinum electrode with constant current electrolytic method in the H2SO4-KBr medium. It was then found that compared with reagent Br2 as well as on-line electrogenerated Br2, the in situ electrogenerated Br2 could oxidize the isoniazid injected accompanying by a stronger chemiluminescence signal. Based on this observation, a new flow-ijjection electrogenerated chemiluminescence method for the determination of isoniazid was proposed. At the same time, a new concept, which can be used to explore the CL properties of the in situ electrogenerated reagent and to improve the sensitivity of CL analysis, was also proposed.

Key words: NASCENCY, OXIDANT, BROMINE, ELECTROLYTIC CELL, FLOW INJECTION ANALYSIS, CHEMILUMINESSENCE, ELECTROLUMINESCENCE, ISONIAZIDUM

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