高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (7): 1049.

• 研究简报 • 上一篇    下一篇

高锰酸钾-甲醛-Fe(Ⅱ)化学发光新体系的研究

何云华, 杜建修, 封满良, 吕九如   

  1. 陕西师范大学化学系, 西安 710062
  • 收稿日期:1998-11-05 出版日期:1999-07-24 发布日期:1999-07-24
  • 通讯作者: 吕九如
  • 作者简介:何云华,女,35岁,硕士研究生.

An Investigation for the Chemiluminescence Reaction of Potassium Permanganate-Formaldehyde-Fe(Ⅱ) System

HE Yun-Hua, DU Jian-Xiu, FENG Man-Liang, Lü Jiu-Ru    

  1. Department of Chemistry, Shaanxi Normal University, Xi'an, 710062
  • Received:1998-11-05 Online:1999-07-24 Published:1999-07-24

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被引次数

32

摘要： 有关高锰酸钾氧化有机物的化学发光反应已有不少报道[1～3],初步形成一个新的化学发光体系[4].但高锰酸钾与无机物化学发光反应的研究至今尚未见报道.我们发现,在甲醛存在下,高锰酸钾在酸性溶液中可氧化Fe(Ⅱ)产生很强的化学发光.

关键词: 化学发光分析, 高锰酸钾, Fe(Ⅱ), 甲醛

Abstract: The chemiluminescence reaction of Fe(Ⅱ)-potassium permanganate with formaldehyde as an enhancer was investigated. Anew method for the determination of iron on the basis of the reaction has been developed. The detection limit is 4.4×10-10g/mL Fe, the relative standard deviation is 1.6%(6.0×10-8g/mL Fe, n =11), the linear range is 1.0×10-9-8.0×10-7g/mL Fe. This method has been applied to the determination of iron in nature water. The mechanism of this reaction was also investigated.

Key words: Chemiluminescence analysis, Potassium permanganate, Iron(Ⅱ), Formaldehyde

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