| 可连续识别Cu2+和PPi的荧光探针的合成及性能研究 |
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| 引用本文： | 李生玲,常西亮,孔祥鹏,成果,王明亚.可连续识别Cu2+和PPi的荧光探针的合成及性能研究[J].化学试剂,2022,44(3):427-435. |
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| 作者姓名： | 李生玲 常西亮 孔祥鹏 成果 王明亚 |
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| 作者单位： | 太原工业学院 化学与化工系,山西 太原 030008,中北大学 化学工程与技术学院,山西 太原 030051 |
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| 基金项目： | 山西省“1331”工程资助项目(晋教科〔2021〕2号)。 |
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| 摘 要： | 连续识别型荧光探针能在同一测试条件下连续识别两种离子,使得离子的检测更具专一性,是在普通同类型探针检测功能方面的拓展.设计合成了以7-二乙氨基香豆素为母体、咪唑-2-甲醛为识别基团的一种高选择性的席夫碱型荧光探针CI,用于连续识别Cu2+和焦磷酸根离子(PPi).探针CI对Cu2+表现出了明显的"开-关"荧光淬灭响应,...
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| 关 键 词： | 香豆素 荧光探针 咪唑 Cu2+ PPi 连续识别 |
A Synthesis and Performance Study of Fluorescent Probe for Sequential Recognition of Cu2+ and PPi |
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| LI Sheng-ling,CHENG Xi-liang,KONG Xiang-peng,CHENG Guo,WANG Ming-ya.A Synthesis and Performance Study of Fluorescent Probe for Sequential Recognition of Cu2+ and PPi[J].Chemical Reagents,2022,44(3):427-435. |
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| Authors: | LI Sheng-ling CHENG Xi-liang KONG Xiang-peng CHENG Guo WANG Ming-ya |
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| Affiliation: | (Department of Chemistry and Chemical Engineering,Taiyuan Institute of Technology,Taiyuan 030008,China;School of Chemical Engineering and Technology,North University of China,Taiyuan 030051,China) |
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| Abstract: | Sequential recognition fluorescent chemical probe is able to identify two different ions continuously under the same condition,making the ion detection more specific,which is an extension of the detection function of common probes of the same type.In this study,a highly selective Schiff base fluorescent probe CI was synthesized with 7-diethylaminocoumarin as the parent and imidazole-2-carboxaldehyde as the recognition group for sequential recognition of Cu2+and PPi.The probe CI showed an obvious“on-off”fluorescence quenching response to Cu2+with an efficiency of 100%,and the CI-Cu2+complex showed an“off-on”response to PPi fluorescence enhancement.The detection limit of probe CI for Cu2+and PPi was 0.14μmol/L.The binding capacity of probe CI and Cu2+was 1∶1,while the binding capacity of CI-Cu2+complex and PPi was 2∶1.Over pH range 5~11,both probes CI and CI-Cu2+are both of high recognition performance. |
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| Keywords: | coumarin fluorescent probe imidazole Cu2+ PPi continuous recognition |
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