Synthesis of a Fluorescence Probe Based on 8-Hydroxyquinoline Derivative and Its Application in Mg<sup>2+</sup> Ion Detection

FU Zhen-hai; WANG Min; LI Zhi-wei; QIN Jing-can; SU Tong; ZHANG Zhi-hong

doi:10.19969/j.fxcsxb.21020502

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Synthesis of a Fluorescence Probe Based on 8-Hydroxyquinoline Derivative and Its Application in Mg²⁺ Ion Detection

Experimental Techniques and Methods | 更新时间：2023-02-13

- Synthesis of a Fluorescence Probe Based on 8-Hydroxyquinoline Derivative and Its Application in Mg²⁺ Ion Detection
- Journal of Instrumental Analysis Vol. 40, Issue 10, Pages: 1520-1525(2021)
- 作者机构：
  
  1.中国科学院青海盐湖研究所，中国科学院盐湖资源综合高效利用重点实验室，青海西宁 810008
  2.青海省盐湖资源化学重点实验室，青海西宁 810008
  3.中国科学院大学，北京 100049
- 作者简介：
- 基金信息：
- DOI：10.19969/j.fxcsxb.21020502
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付振海,王敏,李志伟等.一种8-羟基喹啉衍生物的制备及其对Mg²⁺的检测[J].分析测试学报,2021,40(10):1520-1525.

FU Zhen-hai,WANG Min,LI Zhi-wei,et al.Synthesis of a Fluorescence Probe Based on 8-Hydroxyquinoline Derivative and Its Application in Mg²⁺ Ion Detection[J].Journal of Instrumental Analysis,2021,40(10):1520-1525.
付振海,王敏,李志伟等.一种8-羟基喹啉衍生物的制备及其对Mg²⁺的检测[J].分析测试学报,2021,40(10):1520-1525. DOI： 10.19969/j.fxcsxb.21020502.

FU Zhen-hai,WANG Min,LI Zhi-wei,et al.Synthesis of a Fluorescence Probe Based on 8-Hydroxyquinoline Derivative and Its Application in Mg²⁺ Ion Detection[J].Journal of Instrumental Analysis,2021,40(10):1520-1525. DOI： 10.19969/j.fxcsxb.21020502.

摘要

该文以8-羟基喹啉-5-醛与苯甲酰肼反应后的酰腙作为荧光探针，利用,1,H NMR、,13,C NMR、MS以及荧光光谱对其结构和性质进行表征和测试。结果表明，在二甲基亚砜－4-羟乙基哌嗪乙磺酸（DMSO－HEPES）缓冲溶液（20 mmol/L，pH 7.0，95∶5，体积比）中，探针能够通过577 nm处的荧光增强选择性识别Mg,2+,，检出限达8.2 × 10,－8, mol/L。此外，该探针还可以利用604、611 nm处的荧光增强来选择性识别Cd,2+,和Zn,2+,。理论优化计算表明，探针与Mg,2+,之间以2∶1形成配位后，HOMO与LUMO间的能级差缩小，电子云密度增大，从而在荧光光谱中表现出荧光增强。

Abstract

A fluorescence probe was designed and synthesized by the reaction between 8-hydroxyquinoline-5-carbaldehyde and benzohydrazide in this work，which was characterized by ,1,H NMR， ,13,C NMR and MS，and then employed in the selective fluorescence detection of Mg,2+, ion．All experimental results showed that the probe exhibits a good selectivity towards Mg,2+, ion by using fluorescence enhancement at 577 nm in DMSO－HEPES buffer solution（20 mmol/L，pH 7.0，95∶5，by volume），with a detection limit for Mg,2+, ion as low as 8.2 × 10,－8, mol/L．In addition，the probe could also be used to detect Cd,2+, ion or Zn,2+, ion at the wavelengths of 604 nm and 611 nm．Theoretical calculation demonstrated that，after the formation of a 2∶1 stoichiometric complex between probe and Mg,2+, ion，the electron density mainly concentrated around Mg,2+, ion，resulting in the fluorescence enhancement due to the smaller energy gap of probe + Mg,2+, system.

关键词

荧光探针8-羟基喹啉镁离子希夫碱

Keywords

fluorescence probe8-hydroxyquinolineMg2+ ionSchiff-base

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Synthesis of a Fluorescence Probe Based on 8-Hydroxyquinoline Derivative and Its Application in Mg2+ Ion Detection

DOI：10.19969/j.fxcsxb.21020502

摘要

Abstract

关键词

Keywords

references

Synthesis of a Fluorescence Probe Based on 8-Hydroxyquinoline Derivative and Its Application in Mg²⁺ Ion Detection