高等学校化学学报

高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (3): 367.

• 研究简报 • 上一篇    下一篇

一种基于形成杂多核配合物的荧光增敏效应的研究(Ⅱ)──钴(Ⅱ)-7-(8-羟基-3,6-二磺基萘偶氮)-8-羟基喹啉-5-磺酸-硼(Ⅲ)三元体系的荧光性质及其分析应用

熊国华1, 刘虹2, 俞英2, 黄坚锋2   

  1. 1. 九江师范专科学校化学系, 九江, 332000;
    2. 江西大学实验中心, 南昌
  • 收稿日期:1993-03-19 修回日期:1993-08-15 出版日期:1994-03-24 发布日期:1994-03-24
  • 通讯作者: 熊国华,男,31岁,硕士,副教授.
  • 作者简介:熊国华,男,31岁,硕士,副教授.
  • 基金资助:

    江西省自然科学基金

Studies on a New Effect of Fluorescent Sensitization Based on the Formation of Heteropolynuclear Complex(Ⅱ) ──Fluorescences of the Co(Ⅱ)-7-(8-Hydroxy-3, 6-disulfonaphthylazo)-8-hydroxyquinoline-5-sulfonic acid-B(Ⅲ)System and Their Analytical Applicat

XIONG Guo-Hua1, LIU Hong2, YU Ying2, HUANG Jian-Feng2   

  1. 1. Department of Chemistry, Jiujiang Teachers' College, Jiujiang, 332000;
    2. Experiment Centre, Jiangxi University, Nanchang
  • Received:1993-03-19 Revised:1993-08-15 Online:1994-03-24 Published:1994-03-24

PDF (PC)

关键词: 杂多核配合物, 荧光增敏, 7-(8-羟基-3, 6-二磺基萘偶氮)-8-羟基喹啉-5-磺酸, 硼, 钴

Abstract: A new effect of fluorescent sensitization is studied.Co2+ can promote the complexation reaction between 7-(8-hydroxy-3,6-disulfonaphthylazo)-8-hydroxyquinoline-5-sulfonic acid(R) and boron(Ⅲ)(provided by B2O42-), and makes the fluorescent intensity increase but does not change the characteristic fluorescent spectrum.Our study show that it is the formation of heteropolynuclear complex CoR2B that makes the fluorescent sensitization.So, a fluoremetric analytical approach of cobalt has been established.It's linear range is 0-5.1×10-7mol/L Co2+, and the detection limit is 7.2×10-9mol/L.

Key words: Heteropolynuclear complex, Fluorescent sensitization, 7-(8-Hydroxy-3,6-disulfonaphthylazo)-8-hydroxyquinoline-5-sulfonic acid, Boron, Cobalt

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