一种可富集Fe^3+的含芘荧光探针  

A Pyrene-containing Fluorescent Probe with Enriching Fe^3+

作　　者：王莎 黄子杰 肖盈希 卢博 唐健[1] 马立军[1] WANG Sha;HUANG Zijie;XIAO Yingxi;LU Bo;TANG Jian;MA Lijun(School of Chemistry,South China Normal University,Guangzhou 510006,China)

机构地区：[1]华南师范大学化学学院,广州510006

出　　处：《华南师范大学学报（自然科学版）》2020年第6期34-38,共5页Journal of South China Normal University(Natural Science Edition)

基　　金：广东省自然科学基金项目(2015A030313392);广州市科技计划项目(201804010465)。

摘　　要：以芘为荧光发射基团、以邻氨基苯甲酸基团为识别基团,设计、合成了一种对Fe^3+特异性响应的荧光探针芘甲酰邻氨基苯甲酸(PAA).利用氢核磁共振波谱、质谱表征其结构,通过紫外-可见吸收光谱以及荧光发射光谱研究其对Fe^3+的响应性能.结果表明:PAA对Fe^3+具有高选择性、高抗干扰性的荧光响应.随着Fe^3+浓度的升高,探针的荧光强度逐渐减弱,同时伴随大量Fe^3+螯合物沉淀的析出,从而使Fe^3+从体系中富集出来,且在4倍浓度干扰离子存在的体系中,PAA对Fe^3+的识别能力几乎不受影响.因此,PAA在实际环境应用中,具有较大的潜力和应用价值.A fluorescent probe(pyrene-formyl-anthranilic acid,PAA)with specific response to Fe^3+was designed and synthesized using pyrene as a fluorescent group and anthranilic acid group as a receptor.The structure was characterized with hydrogen nuclear magnetic resonance spectroscopy and mass spectrometry.Visible absorption spectra and fluorescence emission spectra were used to study the response of Fe^3+.The results showed that PAA had high selectivity and high anti-interference fluorescence response to Fe^3+.With the increase of Fe^3+concentration,the probe s fluorescence intensity was gradually weakened,and a large amount of iron ion chelate precipitated and so that it could be removed from the system.In the system where 4 times of interfering ions existed,the ability of PAA to recognize Fe^3+was hardly affected.Therefore PAA has a great potential for practical application.

关 键 词：荧光探针 芘 FE^3+ 环境应用 富集 

分 类 号：O65[理学—分析化学]