高等学校化学学报

高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (4): 364.

• 研究论文 • 上一篇    下一篇

长链烷基(2-羟乙基)二甲基氯化铵用作分析增敏试剂

谢晖, 俞汝勤   

  1. 湖南大学化学化工系
  • 收稿日期:1987-09-15 出版日期:1989-04-24 发布日期:1989-04-24
  • 通讯作者: 俞汝勤
  • 基金资助:

    国家自然科学基金

Long-Chain Alkyl (2-Hydroxyethyl) Dimethylammonium Chlorides as Micellar Analytical Sensitizer

Xie Hui, Yu Ruqiu   

  1. Department of Chemistry and Chemical Engineering, Hunan University, Changsha
  • Received:1987-09-15 Online:1989-04-24 Published:1989-04-24

PDF (PC)

被引次数

4

摘要： 合成了3种含季氮原子及羟基的同系列分析增敏试剂十六烷基(2-羟乙基)二甲基氯化铵(HEMAC)、十四烷基(2-羟乙基)二甲基氯化铵(TEMAC)和十二烷基(2-羟乙基)二甲基氯化铵(DEMAC),测试其基本物性,并用作测定微量钪、铁(Ⅲ)、锗的增敏试剂,获得了与阳离子表面活性剂及醇类有机溶剂联用时相仿的增敏效果。

关键词: 烷基(2-羟乙基)二甲基氯化铵, 胶束增敏剂, 光度分析

Abstract: Three micellar modifying analytical reagents containing a quaternarynitrqgen atom and a hydroxyl group, i.e. hexadecyl (2-hydroxyethyl)-dimethylammonium chloride (HEMAC), tetradecyl (2-hydroxyethyl) dimethyl-ammanium chloride (TEMAC) and dodecyl (2-hydroxyethyl)dimethylammoniumchloride (DEMAC) were synthesized. The physico-chemical properties andanalytical characteristics of these reagents are evaluated. The synthesizedsurfactants can be used as sensitizing and solubilizing reagents for spectrophoto-metric analysis. Some examples of the micellar improved spectropl otometricsystems by using these reagents such as Sc(Ⅲ)-CAS, Fe(Ⅲ)-CASand Ge(Ⅳ)-PF are given. The sensitizing effects of the proposed reagents are similar tothose of cationic surfactants mixed with alcoholic organic solvents.

Key words: Alkyl(2-hydroxyethyl)dimethylammonium chloride, Micellar sensiti-zer, Speotrpphotometry

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