高等学校化学学报

高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (9): 1181.

• 论文 • 上一篇    下一篇

新荧光试剂5'-硝基-水杨基荧光酮-Triton X-100荧光吸灭法测定痕量钼的研究

王筱敏, 陈申, 潘教麦   

  1. 华东师范大学化学系, 上海, 200062
  • 收稿日期:1990-07-20 出版日期:1991-09-24 发布日期:1991-09-24
  • 通讯作者: 潘教麦
  • 基金资助:

    国家自然科学基金

The Determination of Trace Molybdenum with 5'-Nitro-Salicyl Fluorone in the Presence of Triton X-100 by Fluorescence Quenching Method

Wang Xiao-min, Chen Shen, Pan Jiao-mai   

  1. Department of Chemistry, East China Normal University, Shanghai, 200062
  • Received:1990-07-20 Online:1991-09-24 Published:1991-09-24

PDF (PC)

被引次数

20

摘要： 测钼的荧光熄灭法多采用钼与罗丹明类荧光试剂生成不发荧光的配合物而进行测定,我们最近合成的5′-硝基-水杨基荧光酮(5′-N-SAF)结构式见右图,当水溶液中存在TritonX-100时,该配合物具有强烈的荧光;痕量钼的存在可使荧光减弱,据此建立了荧光熄灭测定痕量钼的新方法,该法的灵敏度高(检测限达4×10-3μg/mL)、选择性好、简单、快速,优于文献,本文研究了Mo(Ⅵ)--5′-N-SAF配合物的形成条件。

关键词: 钼, 5'-硝基-水杨基荧光酮, 荧光熄灭法

Abstract: This paper deals with a new fluorometric reagent, 5'-nitro-salicylfluorone (5'-N-SAF) which was synthesized by ourselves used to determinate molybdenum in the presence of Triton X-l00. Anew fluorometric method has been developed and the optimum conditions have been established. The linear range is 0-0. 6 μg/mLand the minimum detectable amount is 4×10-3μg/mL.

Key words: Molybdenum, 5'-Nitro-salicylfluorone, Fluorescence quenching method

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