高等学校化学学报 ›› 2016, Vol. 37 ›› Issue (9): 1611.doi: 10.7503/cjcu20160401

• 分析化学 • 上一篇    下一篇

基于氮化碳纳米粒子荧光检测金离子

庄欠粉1, 曹伟1, 吴琦1, 倪永年1,2()   

  1. 1. 南昌大学化学学院, 南昌 330031
    2. 南昌大学食品科学与技术国家重点实验室, 南昌 330047
  • 收稿日期:2016-06-06 出版日期:2016-09-10 发布日期:2016-08-23
  • 作者简介:联系人简介: 倪永年, 男, 教授, 博士生导师, 主要从事分析化学、 化学计量学和生命分析化学方面的研究. E-mail:ynni@ncu.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 21305061)和江西省自然科学基金(批准号: 20151BAB213014, 20151BAB203021)资助

Fluorescence Detection of Au(Ⅲ) Based on Carbon Nitride Nanoparticles

ZHUANG Qianfen1, CAO Wei1, WU Qi1, NI Yongnian1,2,*()   

  1. 1. College of Chemistry, Nanchang University, Nanchang 330031, China
    2. State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
  • Received:2016-06-06 Online:2016-09-10 Published:2016-08-23
  • Contact: NI Yongnian E-mail:ynni@ncu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.21305061) and the Natural Science Foundation of Jiangxi Province, China(Nos.20151BAB213014, 20151BAB203021)

摘要:

基于金离子[Au(Ⅲ)] 对氮化碳纳米粒子的荧光具有很强的猝灭作用, 构建了一种检测Au(Ⅲ)的荧光传感器. 实验结果表明, 该传感体系检测Au(Ⅲ)的线性范围为0.050~11.0 μmol/L, 检出限(S/N=3) 为22.6 nmol/L. 此外, 该传感器对Au(Ⅲ)的检测具有高选择性, 可用于湖水中Au(Ⅲ)的检测.

关键词: 氮化碳, 金离子, 三聚氰胺, 荧光传感器

Abstract:

A fluorescence sensor for Au(III) detection was constructed on the basis of the fluorescence quenching of carbon nitride nanoparticles by Au(Ⅲ). The experimental results displayed that the Au(Ⅲ) sensor gave a linear range of 0.05—11.0 μmol/L with a detection limit(S/N=3) of 22.6 nmol/L. Moreover, the fluorescence sensor possessed a high selectivity for Au(Ⅲ) detection, and could be applied for Au(Ⅲ) detection in lake samples.

Key words: Carbon nitride, Au(Ⅲ) ion, Melamine, Fluorescence sensor

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