高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (7): 1040.

• 研究简报 • 上一篇    下一篇

多环芳烃芴、苊的无保护流体室温磷光性质研究

李隆弟1, 牟兰2, 陈小康3   

  1. 1. 清华大学化学系, 北京 100084;
    2. 贵州大学化学系, 贵阳 550025;
    3. 韶关大学化学系, 韶关 512005
  • 收稿日期:1999-09-02 出版日期:2000-07-24 发布日期:2000-07-24
  • 通讯作者: 李隆弟(1939年出生),男,教授,博士生导师,主要从事光致发光分析和分子识别方面的研究.
  • 基金资助:

    国家自然基金(批准号:29775013)资助

Studies on Non-protected Fluid Room Temperature Phosphorescence of Polycyclic Aromatic Hydrocarbon of Fluoren and Acenaphthene

LI Long-Di1, MOU Lan2, CHEN Xiao-Kang3   

  1. 1. Department of Chemistry, Tsinghua University, Beijing 100084, China;
    2. Department of Chemistry, Guizhou University, Guiyang 550025, China;
    3. Department of Chemistry, Shaoguan University, Shaoguan 512005, China
  • Received:1999-09-02 Online:2000-07-24 Published:2000-07-24

PDF (PC)

被引次数

11

关键词: 无保护流体室温磷光, 芴, 苊, 有机溶剂的影响

Abstract: Astrong and stable room temperature phosphorescence(RTP) signal of fluoren(Flu), acenaphthene(Ace) aqueous solution can be induced only by using Na 2SO3 as oxygen scavenger and KIas heavy atom perturber. The maximum phosphorescence intensity wavelengths are λex/λem=285/467, 286/493, 520 nm. The RTPintensity is very sensitive to the kind and amount of organic solvent added to the system. For a Flu(or Ace)/KI/Na 2SO3 aqueous solution system containing 1.0% acetonitrile, the RTPintensity is linear to Flu(or Ace) concentration in the range of 8.0×10-7 8.0×10-6 mol/Land 8.0×10-6 4.0×10-5 mol/Lor 8.0×10-7 2.8×10-6 mol/Land 2.8×10-6 4.0×10-5 mol/L. The calculated detection limit by methodology of IUPACbased on three times the standard deviation of background is 8.6×10-8 , 9.0×10-8 mol/Lrespectively. The relative standard deviation( n =7) is 2.4% or 3.5% for the system containing 1.2×10-5 mol/Lof Flu or Ace. The present work shows again that a protective medium is not necessary condition for the fluid RTPemission.

Key words: Non-protected fluid room temperature phosphorescence, Fluoren, Acenaphthene, Effects of organic solvents

中图分类号: 

TrendMD: