高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (11): 1615.

• 论文 • 上一篇    下一篇

稀土元素荧光增强效应的研究──RE对Eu-2-(2-二苯乙酰基)-1,3-茚二酮-十六烷基三甲基溴化铵体系的荧光增强

司志坤, 朱贵云, 张斌, 姜玮   

  1. 山东大学化学系, 济南, 250100
  • 收稿日期:1994-01-12 修回日期:1994-04-14 出版日期:1994-11-24 发布日期:1994-11-24
  • 通讯作者: 司志坤,男,36岁,硕士,副教授.
  • 作者简介:司志坤,男,36岁,硕士,副教授.
  • 基金资助:

    山东大学青年科学基金

Studies on Fluorescence Enhancement of Rare Earths──The Fluorescence Enhancement of Europium-2-(2-diphenylacetyl) indan-1,3-dione-cetyltrimethylammonium Bromide System by Ln3+

SI Zhi-Kun, ZHU Gui-Yun, ZHANG Bin, JIANG Wei   

  1. Department of Chemistry, Shandong University, Jinan, 250100
  • Received:1994-01-12 Revised:1994-04-14 Online:1994-11-24 Published:1994-11-24

摘要: 研究了稀土元素La3+、Gd3+、Yb3+、Lu3+、Y3+及Sc3+对Eu-2-(2-二苯乙酰基)-1,3-茚二酮-阳离子表面活性剂体系的荧光增强效应,结果表明,在上述增强离子存在下,体系的荧光强度分别增加10、130、30、50、52和20倍,利用标准加入法测定了混合稀土氧化物中的铕,铕浓度在1.0×10-10~6.0×10-7mol/L范围内与荧光强度呈线性关系,最低检出限为6.0×10-12mol/L.

关键词: 铕, 2-(2-二苯乙酰基)-1, 3-茚二酮, 荧光增强

Abstract: Afluorescence enhancenient phenomenon shown by adding La, Gd, Tb, Lu, Y, or Sc ion to Eu-2-(2-diphenylacetyl)indan-1, 3-dione (DPN)-cetyltrimethylammonium bromide(CTMAB) system was observed. In the presence of above enhancing ions, the fluorescence intensity of the system can be increased about 10, 130, 30, 50, 52 or 20-fold, respectively than that of the system containing no enhancing ion, and it was a linear function of theconcentration of europium in the range 1.0×10-10 6.0×10-7mol/L.The detection limitwas 6.0×10-12mol/L.The system was used for the spectrofluorimetric determination of europium in the rare earth oxides and gave satisfactory results.

Key words: Europium, 2-(2-Diphenylacetyl)indan-1,3-dione, Fluorescence enhancement

TrendMD: