| 基于ESIPT原理的Cu^2+荧光探针 |
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| 引用本文： | 彭化南,彭小明,杨娜,刘华华,徐和涛,曾家俊. 基于ESIPT原理的Cu^2+荧光探针[J]. 分析试验室, 2020, 0(2): 185-189 |
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| 作者姓名： | 彭化南 彭小明 杨娜 刘华华 徐和涛 曾家俊 |
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| 作者单位： | 上饶师范学院化学与环境科学学院;上饶市生态环境局 |
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| 基金项目： | 江西教育厅科学技术研究项目(GJJ170928);国家自然科学基金(61741510);上饶师范学院教改课题(JG-17-08)资助。 |
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| 摘 要： | 合成了一种基于激发态分子内质子转移(ESIPT)的Cu^2+荧光探针L。通过Job’s曲线、MS和1H NM R研究了探针L对Cu^2+的识别机理。与其他金属离子共存时,探针L对Cu^2+表现出良好的选择性和灵敏度。加入Cu^2+后,探针L的荧光强度逐渐降低;在365 nm紫外光的照射下,探针L溶液的颜色由蓝色变成无色。探针L具有较低的检出限(0.47μmol/L)和短的响应时间(5s)。
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| 关 键 词： | CU^2+ 荧光探针 激发态分子内质子转移 菲并咪唑 |
ESIPT-based fluorescence probe for selective detection of Cu^2+ |
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| PENG Huanan,PENG Xiaoming,YANG Na,LIU Huahua,XU Hetao,ZENG Jiajun. ESIPT-based fluorescence probe for selective detection of Cu^2+[J]. Chinese Journal of Analysis Laboratory, 2020, 0(2): 185-189 |
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| Authors: | PENG Huanan PENG Xiaoming YANG Na LIU Huahua XU Hetao ZENG Jiajun |
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| Affiliation: | (College of Chemistry and Environment Sciences,Shangrao Normal University,Shangrao 334001;Shangrao Ecological Environment Bureau,Shangrao 334001) |
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| Abstract: | An excited-state intramolecular proton transfer(ESIPT)based fluorescence probe L for Cu^2+detection was synthesized.The sensing mechanism between probe L and Cu^2+was also investigated by Job plot’s analysis,MS and1 H NMR spectra.Probe L showed good selectivity and sensitivity to Cu^2+.The fluorescence intensity of probe L decreased gradually with the addition of Cu^2+,and the color of the solution L changed from blue to colorless by naked eyes under 365 nm ultraviolet light irradiation.Probe L exhibited a low detection limit(0.47μmol/L)and a rapid response time(5 s). |
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| Keywords: | Cu^2+ fluorescent probe ESIPT phenanthroimidazole |
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