| 氮掺杂碳纳米粒子的制备及在游离氯检测中的应用 |
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| 引用本文： | 黄庭庭,邹丽玲,赖雪婉,黄浩,张士超,郭嘉庆,翁文.氮掺杂碳纳米粒子的制备及在游离氯检测中的应用[J].分析化学,2017,45(2). |
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| 作者姓名： | 黄庭庭 邹丽玲 赖雪婉 黄浩 张士超 郭嘉庆 翁文 |
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| 作者单位： | 闽南师范大学化学与环境学院,漳州,363000 |
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| 基金项目： | 福建省科技厅引导性项目，福建省自然科学基金杰出青年基金项目 |
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| 摘 要： | 以蔗糖和尿素为前驱体,在油酸介质中通过溶剂热法一步合成了氮掺杂碳纳米粒子,量子产率为15.1％.基于次氯酸对氮掺杂碳纳米粒子的快速、高选择性猝灭,建立了定量测定水中游离氯含量的新方法.次氯酸浓度在0.05～25.00 μmol/L范围内与氮掺杂碳纳米粒子的荧光猝灭率呈良好的线性关系,检出限(S/N=3)为23 nmol/L.本方法可应用于实际水样中游离氯含量的测定.
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| 关 键 词： | 氮掺杂碳纳米粒子 蔗糖 尿素 荧光猝灭 游离氯 |
Fabrication of Nitrogen-doped Carbon Nanoparticles and Application in Detection of Free Chlorine |
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| HUANG Ting-Ting,ZOU Li-Ling,LAI Xue-Wan,HUANG Hao,ZHANG Shi-Chao,GUO Jia-Qing,WENG Wen.Fabrication of Nitrogen-doped Carbon Nanoparticles and Application in Detection of Free Chlorine[J].Chinese Journal of Analytical Chemistry,2017,45(2). |
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| Authors: | HUANG Ting-Ting ZOU Li-Ling LAI Xue-Wan HUANG Hao ZHANG Shi-Chao GUO Jia-Qing WENG Wen |
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| Abstract: | Nitrogen-doped carbon nanoparticles (N-CNPs) with a fluorescence quantum yield of 15.1％ were prepared from sucrose and urea in oleic acid medium by a one-pot solvothermal method.A new approach for quick,sensitive,and selective determination of free chlorine in water was developed based on fluorescence quenching of N-CNPs.There existed a good linear correlation between the fluorescence quenching and the concentration of ClO-in the range of 0.05-25.00 μmol/L.The limit of detection (LOD,S/N =3) was estimated to be 23 nmol/L.This method can be applied to the determination of free chlorine in real water samples. |
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| Keywords: | Nitrogen-doped carbon nanoparticles Sucrose Urea Fluorescence quenching Free chlorine |
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