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镧系金属有机骨架比例荧光检测萘普生
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作者单位
隗玉,张亚如,陈企发,夏炎 1.南开大学化学学院南开大学中心实验室天津3000712.天津市生物传感与分子识别重点实验室天津300071 
基金项目:国家自然科学基金资助项目(21874073)
中文摘要:该文构筑了双荧光发射的比例型荧光传感器,并将其用于萘普生检测。以Eu3+为金属节点,1,3,5 苯三甲酸为配体,通过超声法合成了比例型荧光传感材料Eu-MOF。探究了Eu-MOF的形貌特征、光学性质及对萘普生的检测机理。单一激发光照射下,Eu-MOF呈现源于配体和Eu3+的双荧光发射峰。萘普生的荧光发射峰与Eu-MOF在375 nm处的荧光发射峰重合,且两者之间具有内滤光效应。因此,随着萘普生的逐渐加入,Eu-MOF在375 nm处的荧光发射峰强度逐渐增强,而623 nm处则逐渐减弱,从而可实现对萘普生的比例荧光检测。Eu-MOF检测萘普生的线性范围为007~23 μmol/L,检出限为0039 μmol/L。Eu-MOF在萘普生的检测中表现出良好的选择性和抗干扰能力,是实际样品中萘普生检测的优势材料。
中文关键词:镧系金属有机骨架  比例荧光传感  萘普生
 
Ratiometric Fluorescence Detection of Naproxen Using Lanthanide Metal-Organic Frameworks
Abstract:A ratiometric fluorescence sensor based on lanthanide metal-organic frameworks(MOFs) was synthesized for the detection of naproxen.A ratiometric fluorescent sensing material Eu-MOF,with Eu3+ as metal node and 1,3,5 benzenetricarboxylic acid as ligand,was synthesized by ultrasound synthesis method.The morphology characteristics and optical properties of this Eu-MOF,as well as its detection of naproxen were studied.The Eu-MOF showed dual emission from ligand and Eu3+ under the single excitation.The fluorescence emission of naproxen coincided with the fluorescence emission of Eu-MOF at 375 nm.There was an inner filter effect between Eu-MOF and naproxen.Therefore,the fluorescence emission increased gradually at 375 nm,but weakened gradually at 623 nm with the addition of naproxen,so that the ratiometric fluorescence detection of naproxen could be achieved.There was a good linearity of Eu-MOF for naproxen in the range of 007-23 μmol/L with a detection limit(LOD) of 0039 μmol/L.The Eu-MOF showed good selectivity and anti interference ability in the detection of naproxen.Thus,it is a superior material for detection of naproxen in actual samples.
Key Words:lanthanide based metal-organic frameworks  ratiometric fluorescence sensing  naproxen
引用本文:隗玉,张亚如,陈企发,夏炎.镧系金属有机骨架比例荧光检测萘普生[J].分析测试学报,2021,40(3):333-339.
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