高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (5): 719.

• 研究简报 • 上一篇    下一篇

胶束介质在速差动力学分析中的应用──钴(Ⅱ)、镍(Ⅱ)的同时测定

刘和春, 蔡汝秀, 黄厚评   

  1. 武汉大学化学系, 武汉 430072
  • 收稿日期:1995-06-22 出版日期:1996-05-24 发布日期:1996-05-24
  • 通讯作者: 蔡汝秀
  • 作者简介:刘和春,男,24岁,硕士研究生.
  • 基金资助:

    国家自然科学基金

The Application of Micellar Media in Differential Rate Kinetics Analysis──Simultaneous Determination or Cobalt and Nickel

LIU He-Chun, CAI Ru-Xiu, HUANG Hou-Ping   

  1. Department of Chemistry, Wuhan University, Wuhan 430072
  • Received:1995-06-22 Online:1996-05-24 Published:1996-05-24

关键词: 停流技术, 速差动力学分析法, 钴(Ⅱ), 镍(Ⅱ)

Abstract: Micellar Media in differential rate kinetics analysis has been applied to simultaneous determination of cobalt and nickel.This method was based on the formation of ternary complex of them with 4-(2-pyridylazo)resorcinol(PAR)and cetyltrimethylammonium bromide(CTMAB).The rate of the formation of ternary complex of Co(Ⅱ) was very fast, but that of Ni(Ⅱ) was relatively slow.The relative deviation for determinations of two components was within 8%.The logarithmic extrapolation method with microcomputer 386 has been applied to the determination of Co(Ⅱ) and Ni(Ⅱ)in synthetic samples with satisfactory results.

Key words: Stopped-flow technique, Differential rate kinetics analysis, Cobalt, Nickel

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