高等学校化学学报

高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (5): 596.

• 论文 • 上一篇    下一篇

曙红-NaClO-溴化十六烷基三甲铵-H2O2-Ti(Ⅳ)化学发光新体系的研究及应用

柳玉英, 于振安   

  1. 东北工学院化学系, 沈阳, 110006
  • 收稿日期:1991-03-29 出版日期:1992-05-24 发布日期:1992-05-24
  • 通讯作者: 于振安
  • 基金资助:

    冶金部科学基金

The Study and Application of Eosiny NaClO-CTMAB-H2O2-Ti(Ⅳ) Chemiluminescence System

LIU Yu-ying, YU Zhen-an   

  1. Department of Chemistry, North-East University of Technology, Shenyang, 110006
  • Received:1991-03-29 Online:1992-05-24 Published:1992-05-24

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摘要： 近年来,化学发光在分析上的应用越来越广泛,但用于测定Ti(Ⅳ)体系尚不多见[1],我们发现,在碱性条件下,用ClO--H2O2可氧化曙红而发光,同时发现CTMAB阳离子表面活性物质对该化学发光体系有强烈的敏化作用,Ti(Ⅳ)对该发光体系有催化作用,且可增强发光强度,被增强的发光强度与Ti(Ⅳ)浓度有良好的线性关系.据此可进行痕量Ti(Ⅳ)的测定,并拟定了新的流动注射化学发光测定钛的方法.该法用于合成水样、铝合金试样分析获得满意的效果,检测限达2.1×10-9g/mL,线性范围为4×10-9～8×10-7g/mLTi(Ⅳ),测试的精密度良好,回收率为92.2%～107%,对含10×10-9g/mLTi(Ⅳ)连续测11次,其RSD为1.5%,分析结果与标样推荐值颇为一致.

关键词: 流动注射, 化学发光, 曙红, 溴化十六烷基三甲铵(CTMAB), 钛

Abstract: In this paper a new sensitive and selective analytical method for the determination of trace amounts of Ti(Ⅳ) is proposed on the basis of chemiluminescence of eosiny and CTMABas surface active agent.Flow-injection technique was used.The linear range of the working curves is 4～800 ng/mLand the detection limit is 2.1 ng/mL Ti(Ⅳ).The method was applied to the determination of Ti(Ⅳ) in water and aluminium alloy with satisfactory results.

Key words: Flow-injection, Chemiluminescence, Eosiny, Cetyltrimethyl ammonium bromide, Ti(Ⅳ)

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