高等学校化学学报

高等学校化学学报 ›› 1987, Vol. 8 ›› Issue (11): 972.

• 研究简报 • 上一篇    下一篇

罗丹明6G荧光猝灭法测定微量钌

孙静轩, 潘玉诚, 宋玉民   

  1. 西北师范学院化学系
  • 收稿日期:1986-06-26 出版日期:1987-11-24 发布日期:1987-11-24

The Fluorescence Quenching Method to Determine Ruthenium by Rhodamine 6G

Shun Jingxuan, Pan Yuchen, Song Yumin   

  1. Department of Chemistry, Xibei Teachers College, Lanzhou
  • Received:1986-06-26 Online:1987-11-24 Published:1987-11-24

PDF (PC)

被引次数

9

摘要： 关于钌的三元络合物荧光分析法报道较少,S.Jaya曾报道基于Ru-SCN--罗丹明6G三元络合物体系分析钌的分光光度法,罗丹明6G(简称R)染料分子中苯环之间有附加的氧桥,分子结构牢固,吸收光能不易失去,故产生荧光,钌(Ⅲ)与硫氰酸根形成的络阴离子与R的阳离子形成离子缔合物Ru(SCN)6R3,使罗丹明6G荧光猝灭,其猝灭值随钌的含量而增高,据此现象拟定了测定钌的方法,灵敏度较分光光度法提高20倍。

Abstract: Anew sensitive fluorescence quenching method is proposed on the basis of the ternary complex formed from ruthenium (Ⅲ) and rhodamine 6Gin the presence of thiocyanate. Rhodamine 6G is a fluorescent dye. Its maximum excitation wavelength is 525nm, and its maximum emission wavelength is 551nm. The formation of the ternary complex reduces the fluorescence. Beer's law is obeyed in the concentration range from 0 to 0.7/μg/50ml. The method is valuable in determining the trace of ruthenium in both synthetic and natural samples.

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