Synthesis of Fluorescent Probe Based on FRET and Its Appalication in The Determination for Hg2+

WANG Hai-ju; ZHANG Wen-zhu; HE Cheng; ZHOU Peng

doi:10.3788/fgxb20123309.1030

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Synthesis of Fluorescent Probe Based on FRET and Its Appalication in The Determination for Hg²⁺

更新时间：2020-08-12

- Synthesis of Fluorescent Probe Based on FRET and Its Appalication in The Determination for Hg²⁺
- Chinese Journal of Luminescence Vol. 33, Issue 9, Pages: 1030-1036(2012)
- 作者机构：
  
  大连理工大学化学学院精细化工国家重点实验室,辽宁大连,116021
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123309.1030
  CLC： O482.31
- Received：10 June 2012，
  
  Revised：29 June 2012，
  
  Published：10 September 2012
- 稿件说明：
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王海菊, 张文珠, 何成, 周硼. 基于FRET机理的荧光探针的合成及其对汞离子的识别[J]. 发光学报, 2012,33(9): 1030-1036

WANG Hai-ju, ZHANG Wen-zhu, HE Cheng, ZHOU Peng. Synthesis of Fluorescent Probe Based on FRET and Its Appalication in The Determination for Hg2+[J]. Chinese Journal of Luminescence, 2012,33(9): 1030-1036
王海菊, 张文珠, 何成, 周硼. 基于FRET机理的荧光探针的合成及其对汞离子的识别[J]. 发光学报, 2012,33(9): 1030-1036 DOI： 10.3788/fgxb20123309.1030.

WANG Hai-ju, ZHANG Wen-zhu, HE Cheng, ZHOU Peng. Synthesis of Fluorescent Probe Based on FRET and Its Appalication in The Determination for Hg2+[J]. Chinese Journal of Luminescence, 2012,33(9): 1030-1036 DOI： 10.3788/fgxb20123309.1030.

摘要

基于FRET机理设计合成了一个包含罗丹明6G及香豆素的汞离子荧光探针Rh-6G-coumarin(RC)

研究了它的光谱性能及对汞离子的识别作用。在

OH)∶

O)=9∶1溶液中加入汞离子后

575 nm处荧光强度迅速增大

荧光由蓝色变为明亮的红色

同时溶液的颜色由黄色变为红色。溶液中其他金属离子

如Na

、K

、Mg

、Fe

、Co

、Pb

、Zn

、Cd

和Cr

对汞离子的荧光识别没有太大影响。该探针可在较宽的pH ( 4~10)范围内识别汞离子。光谱滴定实验表明

汞离子与RC以2∶1的计量比形成了配合物。

Abstract

By combining rhodamine 6G and cumarin

a fluorescent probe of Hg

Rh-6G-cumarin(RC)

based on FRET mechanism was synthesized. And through research its spectral properties and recognition to mercury ion

we found that it featured a rapid fluorescence enhancement at 575 nm upon the addition of Hg

OH)∶

O)=9∶1 solution. The fluorescence changed from blue to bright red

while the color of the solution changed from yellow to red. This probe showed high specific for Hg

over other metal cations

such as Na

and Pb

. It could detect Hg

effectively in a relatively wide pH range (4~10). The titration experiment indicated a 2∶1 stoichiometry of the RC-Hg

complexation species.

关键词

Keywords

references

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