高等学校化学学报

高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (7): 689.

• 研究论文 • 上一篇    下一篇

新荧光试剂SPAEC与镓的螯合反应及分析应用

李志良, 俞汝勤   

  1. 湖南大学化学化工系
  • 收稿日期:1988-09-26 出版日期:1990-07-24 发布日期:1990-07-24
  • 通讯作者: 李志良
  • 基金资助:

    国家教育委员会高等学校基金

Studies on Chelate Reaction of New Fluorescent Reagent SPAEC with Gallium (Ⅲ) and Its Analytical Application

Li Zhiliang, Yu Ruqin   

  1. Department of Chemistry and Chemical Engineering, Hunan University, Changsha
  • Received:1988-09-26 Online:1990-07-24 Published:1990-07-24

PDF (PC)

被引次数

10

摘要： 用新荧光试剂2-(5′-磺基-2′-羟基苯-1′-偶氮)-5-乙氨基-4-甲酚研究了荧光测定镓的反应条件,建立了测定15×10-3～150×10-3ppm镓的荧光方法,分析结果尚好。

关键词: 荧光试剂SPAEC, 荧光光度法, 镓的测定

Abstract: Anew fluorescent analytical reagent 2-(5'-sulfo-2'-hydroxyl-1'-phenylazo)-5-ethy-lamino-4-cresol(SPAEC), which has been synthesized recently in our laboratory, was applied to the fluorimetric determination of gallium. The optimal conditions for fluorescent complex formation of SPAECwith gallium ( M ) were established. At pH 3. 8-5. 5, a 1 : 1 type complex was formed with λex/λem of 515/585 nm and with quantum yield (φF) of 0. 046. The proposed method was used for the determination of 2 × 10-7～2 × 10-6 mol/Lgallium in semiconductor and alloy samples with good results.

Key words: Fluorescent reagent SPAEC, Fluorimetry, Determination of gallium

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