高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (11): 1706.

• 研究快报 • 上一篇    下一篇

现场光化学荧光探针法测定DNA──以9,10-蒽醌-2-磺酸钠为光化学荧光探针

李文友, 许金钩, 郭祥群, 朱庆枝, 赵一兵   

  1. 材料和生命过程分析科学开放研究实脸室, 厦门大学化学系, 厦门, 361005
  • 收稿日期:1996-05-13 出版日期:1996-11-24 发布日期:1996-11-24
  • 通讯作者: 许金钩
  • 作者简介:李文友,男,30岁,博士研究生.
  • 基金资助:

    国家自然科学基金

Determination of DNA by Use of in situ Photochemical Fluorescence Probe──Sodium 9,10-Anthraquinone-2-sulfonate as a Photochemical Fluorescence Probe

LI Wen-You, XU Jin-Gou, GUO Xiang-Qun, ZHU Qing-Zhi, ZHAO Yi-Bing   

  1. The Research Laboratory of SEDC of Analytical Science for Material and Life Chemistry, Department of Chemistry, Xiamen University, Xiamen, 361005
  • Received:1996-05-13 Online:1996-11-24 Published:1996-11-24

关键词: DNA, 光化学荧光探针, 9, 10-蒽醌-2-磺酸钠

Abstract: An in situ photochemical fluorescence probe method for the determination of DNAwith sodium 9,10-anthraquinone-2-sulfonate(AQS) as a photochemical fluorescence probe was developed for the first time.It was based on the conversion of AQSinto an intensively fluorescent product on irradiating with UVradiation.The photochemical reaction is decelerated by DNA.The determination can be carried out by measuring the fluorescence intensity at a fixed time.The calibration graph was linear in the range 0~80 ng/mL CT DNA(r=0.9991), the limit of detection was 3.2 ng/mL CT DNA(n=9).The kinetic behaviour of the photochemical reaction and the effects of some experiment conditions were investigated and discussed in detail.The results of absorption spectra experiments and competitive binding experiments suggest that the interaction between AQSand DNAmay be intercalative.

Key words: DNA, Photochemical fluorescence probe, Sodium 9,10-anthraquinone-2-sulfonate

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