| 基于铜纳米簇的聚集诱导发光检测铅离子 |
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| 引用本文： | 韩冰雁,侯绪芬,相荣超,于明波,李莹,彭婷婷,贺高红. 基于铜纳米簇的聚集诱导发光检测铅离子[J]. 分析化学, 2017, 45(1): 23-27. DOI: 10.11895/j.issn.0253-3820.160596 |
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| 作者姓名： | 韩冰雁 侯绪芬 相荣超 于明波 李莹 彭婷婷 贺高红 |
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| 作者单位： | 大连理工大学石油与化学工程学院,盘锦,124221 |
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| 基金项目： | 国家自然科学基金项目，中央高校基本科研业务费专项资金，电分析化学国家重点实验室开放基金，长江学者奖励计划，the National Natural Science Foundation of China，the Fundamental Research Funds for the Central Universities，the Open Funds of the State Key Laboratory of Electroanalytical Chemistry，Changjiang Scholars Program |
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| 摘 要： | 基于谷胱甘肽保护的非贵金属铜纳米簇(Cu NCs@GSH)的聚集诱导发光现象,建立了快速检测铅离子(Pb2+)的“Turn on”型荧光分析方法.Cu NCs@GSH溶液荧光强度很弱,当存在pb2+时,荧光强度可显著增强,溶液显示明亮的橙黄色.基于此原理建立了检测pb2+的荧光方法,线性范围为200～700 μmol/L,检出限为106 μmol/L,常见金属离子不干扰pb2+的测定.本方法简单快速、选择性高,可实现对pb2+的可视化定性检测.
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| 关 键 词： | 聚集诱导发光 铜纳米簇 铅离子 |
| 收稿时间： | 2016-08-10 |
Detection of Lead Ion Based on Aggregation-induced Emission of Copper Nanoclusters |
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| HAN Bing-Yan,HOU Xu-Fen,XIANG Rong-Chao,YU Ming-Bo,LI Ying,PENG Ting-Ting,HE Gao-Hong. Detection of Lead Ion Based on Aggregation-induced Emission of Copper Nanoclusters[J]. Chinese Journal of Analytical Chemistry, 2017, 45(1): 23-27. DOI: 10.11895/j.issn.0253-3820.160596 |
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| Authors: | HAN Bing-Yan HOU Xu-Fen XIANG Rong-Chao YU Ming-Bo LI Ying PENG Ting-Ting HE Gao-Hong |
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| Affiliation: | School of Petroleum and Chemical Engineering, Dalian University of Technology, Panjin 124221, China |
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| Abstract: | A turn-on fluorescence analysis method was established for detection of Pb2+ based on aggregation-induced emission. Glutathione-protected non-noble metal copper nanoclusters (Cu NCs@GSH) showed nearly no fluorescence. However, the fluorescence intensity of Cu NCs@GSH was remarkably improved in the presence of Pb2+ and showed bright orange fluorescence. A fluorescence method for detection of Pb2+ was established based on this principle. The fluorescence change of the Cu NCs@GSH solution showed a linear relationship with Pb2+ concentration within the range of 200–700 μM. The limit of detection was 106 μM (S/N = 3). This method is simple, rapid and highly selective, and can be used for the visual qualitative detection of Pb2+ under ultraviolet (UV) lamp. |
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| Keywords: | Aggregation-induced emission Copper nanoclusters Lead ion (Ⅱ) |
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