新型萘酰亚胺类硫氰酸根离子荧光探针的合成及应用

付梅艳; 肖 义

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新型萘酰亚胺类硫氰酸根离子荧光探针的合成及应用

论文 | 更新时间：2020-08-12

- 新型萘酰亚胺类硫氰酸根离子荧光探针的合成及应用
- The Synthesis and Application of a New Thiocyanate Sensor Based on Naphthalimide
- 发光学报 2009年30卷第4期页码：482-486
- 作者机构：
  
  大连理工大学精细化工国家重点实验室,辽宁大连,116024
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： O482.31
- 纸质出版日期：2009-8-30，
  
  网络出版日期：2009-8-30，
  
  收稿日期：2009-3-5，
  
  修回日期：1900-1-2，
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付梅艳, 肖义. 新型萘酰亚胺类硫氰酸根离子荧光探针的合成及应用[J]. 发光学报, 2009,30(4):482-486.

FU Mei-yan, XIAO Yi. The Synthesis and Application of a New Thiocyanate Sensor Based on Naphthalimide[J]. Chinese Journal of Luminescence, 2009,30(4):482-486.
付梅艳, 肖义. 新型萘酰亚胺类硫氰酸根离子荧光探针的合成及应用[J]. 发光学报, 2009,30(4):482-486. DOI：

FU Mei-yan, XIAO Yi. The Synthesis and Application of a New Thiocyanate Sensor Based on Naphthalimide[J]. Chinese Journal of Luminescence, 2009,30(4):482-486. DOI：

摘要

设计合成了一个萘酰亚胺类SCN

离子探针NNN

其合成方法简单

条件温和。能够在水溶液中专一识别SCN

离子

检测浓度最小可以达到20 μmol/L

随着SCN

离子的加入

化合物NNN吸收光谱蓝移了60 nm

从黄色变为无色

这种明显的颜色变化

有利于可视观察。通过双波长比例变化

可以实现SCN

离子20 μmol/L~0.8 mmol/L范围内的定量检测。SCN

离子能够猝灭化合物NNN的荧光

荧光强度前后变化明显

荧光量子产率由原来的0.33减弱到0.02。通过荧光光谱和吸收光谱两种手段实现对SCN

的检测

选择性好

灵敏度较高。

Abstract

In this article

a new thiocyanate sensor NNN based on naphthalimide was conveniently synthesized using a simple method

and all the reactions were taken at room temperature. The determination process can be taken out in water and has no interference by any other anions. NNN has large Stocks shift about 100~140 nm in different solvent

and high quantum yield about 0.6 in polar solvent. With the addition of SCN

the absorption peak of NNN at 417 nm decreases

at the same time a new absorption peak appears at 347 nm

when the concentration of SCN

is up to 1 mmol/L

the peak at 417 nm is disappeared. The absorption wavelength has a blue-shift of 60 nm

the colour of the solution changes from yellow to colorless. This obvious difference in colour is easy to observe by naked eyes. The ratio of two peak values on absorption spectra is linearly related to the concentration of the SCN

in a large range (20 μmol/L ~0.8 mmol/L)

this result makes the quantitative analysis of SCN

realizable. The fluorescence of NNN is quenched by the SCN

the fluorescence quantum yield decreases from 0.33 to 0.02

there is no other anions to interference the detection.

关键词

SCN-萘酰亚胺吸收光谱荧光光谱探针

Keywords

SCN-naphthalimideabsorption spectrumflourescence spectrumsensor

references

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