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刘波,谭艳红,胡清华,王宏青.基于萘基团的Zn²⁺“关-开”荧光探针[J].南华大学学报(自然科学版),2019,33(3):94~100.[LIU Bo,TAN Yanhong,HU Qinghua,WANG Hongqing.“Off-On” Fluorescent Probe Based on Naphthalene Group for Zn²⁺ Ions[J].Journal of University of South China(Science and Technology),2019,33(3):94~100.]

基于萘基团的Zn²⁺“关-开”荧光探针

“Off-On” Fluorescent Probe Based on Naphthalene Group for Zn²⁺ Ions

投稿时间：2018-12-03

DOI：

中文关键词: 荧光探针 Zn²⁺离子 2-羟基-1-萘甲醛密度泛函理论

英文关键词:fluorescence probe Zn²⁺ ions 2-hydroxy-1-naphthaldehyde density functional theory

基金项目:南华大学研究生科学基金项目(2018KYZ010)

作者	单位
刘波	南华大学化学化工学院,湖南衡阳 421001
谭艳红	南华大学化学化工学院,湖南衡阳 421001
胡清华	南华大学化学化工学院,湖南衡阳 421001
王宏青	南华大学化学化工学院,湖南衡阳 421001

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中文摘要:

合成了一种新Zn²⁺的荧光探针2-羟基-苯甲酸(2-羟基-萘-1-基亚甲基)-酰肼(P3),该探针Ag⁺,Al³⁺,Bi³⁺,Cd²⁺,Co²⁺,Cr³⁺,Cu²⁺,Dy³⁺,Eu³⁺,Fe³⁺,Hg²⁺,K⁺,Mg²⁺,Mn²⁺,Na⁺,Ni²⁺,Pb²⁺,La³⁺,Sm³⁺,UO₂²⁺,Th⁴⁺和Zr⁴⁺等多种离子的存在下,对Zn²⁺具有很好的选择性。探究了探针P3识别Zn²⁺的最佳条件,建立了一种荧光检测Zn²⁺的方法。其结果表明在pH值为7.36,φ(CH₃OH)=10%及φ(H₂O)=90%的体系中,Zn²⁺浓度在1~9 μmol/L范围内,探针的荧光强度与Zn²⁺的浓度呈现良好的线性关系(y=40.333x+10.323,R²=0.99),其检出限0.045 6 μmol/L。同时,研究了P3与Zn²⁺的作用模式,提出了荧光机制。

英文摘要:

A new Zn²⁺fluorescent sensor 2-Hydroxy-benzoic acid(2-hydroxy-naphthalen-1-ylmethylene)-hydrazide(P3) was designed and studied,which showed high selectivity in the present of Ag⁺,Al³⁺,Bi³⁺,Cd²⁺,Co²⁺,Cr³⁺,Cu²⁺,Dy³⁺,Eu³⁺,Fe³⁺,Hg²⁺,K⁺,Mg²⁺,Mn²⁺,Na⁺,Ni²⁺,Pb²⁺,La³⁺,Sm³⁺,UO₂²⁺,Th⁴⁺,Zr⁴⁺.The best conditions of the probe P3 recognizing Zn²⁺ was explored and a method for fluorescence detection of Zn²⁺ was established.The results showed that the fluorescence intensity of P3 had good linear relationship with Zn²⁺ ions concentration in the range of 1-9 μmol/L(y=40.333x+10.323,R²=0.99) in the system with pH 7.36 and φ(CH₃OH)=10%,φ(H₂O)=90% and the low detection limit was 0.045 6 μmol/L.At the same time,the interaction properties between the sensor P3 and Zn²⁺ ions and the fluorescent mechanism were investigated.

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