| 基于谷胱甘肽稳定铜纳米簇的荧光传感方法灵敏检测汞离子 |
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| 引用本文： | 王海波,白宏宇,毛安丽,董高丽. 基于谷胱甘肽稳定铜纳米簇的荧光传感方法灵敏检测汞离子[J]. 信阳师范学院学报(自然科学版), 2019, 0(4): 600-603 |
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| 作者姓名： | 王海波 白宏宇 毛安丽 董高丽 |
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| 作者单位： | 信阳师范学院化学化工学院;信阳师范学院大别山农业生物资源保护与利用研究院 |
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| 摘 要： | 以谷胱甘肽(GSH)为保护配体和还原剂,制备了稳定的水溶性荧光铜纳米簇(CuNCs).所合成的铜纳米簇在590nm处发射出红色荧光,量子产率约为2.3%,具有良好的光稳定性.以谷胱甘肽稳定铜纳米簇(GSH-CuNCs)作为信号探针,报道了一种荧光传感新方法用于灵敏检测Hg~(2+).结果表明,Hg~(2+)的线性检测范围为2.0×10~(-8)～2.0×10~(-6) mol/L,检出限为4.0×10~(-9) mol/L(R_(SN)=3).该方法成功地实现了湖水样品中汞离子的检测,为汞离子的快速和灵敏监测提供了一种新途径.
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| 关 键 词： | 谷胱甘肽 铜纳米簇 荧光传感方法 Hg~(2+)检测 |
Glutathione Stabilized Copper Nanoclusters Based Fluorescent Method for the Sensitive Detection of Hg~(2+) Ion |
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| Affiliation: | ,College of Chemistry and Chemical Engineering,Xinyang Normal University,Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains,Xinyang Normal University |
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| Abstract: | Water-soluble and stable fluorescent Cu nanoclusters(CuNCs)were prepared by using glutathione(GSH)as protecting ligand and reducing agent.The obtained CuNCs emitted red fluorescence at 590 nm,with the quantum yield of 2.3%and good photo-stability.A fluorescence sensing method was reported for the sensitive determination of Hg~(2+) by using the GSH-stabilized CuNCs(GSH-CuNCs).The linear regions were obtained from 2.0×10~(-8) mol/L to 2.0×10~(-6) mol/L and with a limit of detection of 4.0×10~(-9) mol/L.The strategy was successfully applied for the determination of the Hg~(2+) levels in lake water samples.It could provide a novel method for the rapid and sensitive monitoring of Hg~(2+) ions. |
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| Keywords: | glutathione(GSH) copper nanoclusters(CuNCs) fluorescent method detection of Hg2+ |
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