王莎, 黄子杰, 肖盈希, 卢博, 唐健, 马立军. 一种可富集Fe3+的含芘荧光探针[J]. 华南师范大学学报(自然科学版), 2020, 52(6): 34-38. doi: 10.6054/j.jscnun.2020091
引用本文: 王莎, 黄子杰, 肖盈希, 卢博, 唐健, 马立军. 一种可富集Fe3+的含芘荧光探针[J]. 华南师范大学学报(自然科学版), 2020, 52(6): 34-38. doi: 10.6054/j.jscnun.2020091
WANG Sha, HUANG Zijie, XIAO Yingxi, LU Bo, TANG Jian, MA Lijun. A Pyrene-containing Fluorescent Probe with Enriching Fe3+[J]. Journal of South China Normal University (Natural Science Edition), 2020, 52(6): 34-38. doi: 10.6054/j.jscnun.2020091
Citation: WANG Sha, HUANG Zijie, XIAO Yingxi, LU Bo, TANG Jian, MA Lijun. A Pyrene-containing Fluorescent Probe with Enriching Fe3+[J]. Journal of South China Normal University (Natural Science Edition), 2020, 52(6): 34-38. doi: 10.6054/j.jscnun.2020091

一种可富集Fe3+的含芘荧光探针

A Pyrene-containing Fluorescent Probe with Enriching Fe3+

  • 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Fe3+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Fe3+的响应性能.结果表明:PAA对Fe3+具有高选择性、高抗干扰性的荧光响应.随着Fe3+浓度的升高,探针的荧光强度逐渐减弱,同时伴随大量Fe3+螯合物沉淀的析出,从而使Fe3+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Fe3+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.

     

    Abstract: A fluorescent probe (pyrene-formyl-anthranilic acid, PAA) with specific response to Fe3+ 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 Fe3+. The results showed that PAA had high selectivity and high anti-interference fluorescence response to Fe3+. With the increase of Fe3+ 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 Fe3+ was hardly affected. Therefore PAA has a great potential for practical application.

     

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