多羧酸类荧光探针的合成及性能研究  

Synthesis and Properties of Polycarboxylic Acid Fluorescent Probes

作　　者：李闯 吴晓[1] 孙平平 李昀衡 刘海燕[1] LI Chuang;WU Xiao;SUN Pingping;LI Yunheng;LIU Haiyan(School of Chemical and Environmental Engineering,Yingkou Institute of Technology,Yingkou 115000,China)

机构地区：[1]营口理工学院化学与环境工程学院,辽宁营口115000

出　　处：《山东化工》2025年第3期44-47,共4页Shandong Chemical Industry

基　　金：校内科研基金。

摘　　要：荧光探针因具备选择性强、靶向性好、对离子的定位性优秀等优点,成为近年来检测金属离子的热门方法。以三聚氯氰为主要反应物,与对羟基苯甲醛反应得到中间体Y(质量7.12 g,产率81%),中间体Y再与对氨基苯甲酸反应得到荧光探针Y1(产率59%)。探针(Y1)分别采用荧光光谱法和紫外-可见吸收光谱法探究其对常见金属离子的识别能力。荧光光谱测试结果为:在激发波长为280 nm,发射波长295 nm,17种常见金属离子(浓度为配体溶液的10倍),只有Fe^(3+)对探针Y1(10μmol/L,无水甲醇)荧光发生淬灭;紫外-可见吸收差谱法的结果为在360 nm处以配体溶液置零,17种常见金属离子中Fe^(3+)对探针Y1(10μmol/L,无水甲醇)具有很好的响应效果。Fluorescent probe has become a popular detection method for metal ions in recent years because of its strong selectivity,good targeting and excellent localization of ions.Using cyanogen chloride as the main reactant,the intermediate Y(mass 7.12 g,yield 81%)was obtained by reaction with p-hydroxybenzaldehyde.The intermediate Y was then reacted with p-aminobenzoic acid to obtain fluorescent probe Y1(yield 59%).Fluorescence spectroscopy and UV-VIS absorption spectroscopy were used to investigate the ability of probe(Y1)to identify common metal ions.The results of fluorescence spectra showed that only Fe^(3+)quenched the fluorescence of probe Y1(10μmol/L,anhydrous methanol)at excitation wavelength of 280 nm and emission wavelength of 295 nm with 17 common metal ions(the concentration was 10 times that of ligand solution).The results of UV-visible absorption difference spectrometry show that Fe^(3+)in common metal ions has a good response to probe Y1(10μmol/L,anhydrous methanol)at 360 nm by zeroing ligand solution.

关 键 词：荧光探针 荧光分析法 紫外-可见吸收光谱法 

分 类 号：O657.3[理学—分析化学]