应用化学 ›› 2025, Vol. 42 ›› Issue (4): 511-521.DOI: 10.19894/j.issn.1000-0518.240394

• 研究论文 • 上一篇    下一篇

基于硅量子点荧光法和比色法双模式检测绿原酸

王松柏1(), 李天宇1, 魏梦姝1, 郭炘明1, 李俊芬1, 周影1, 彭秀英2, 董川1()   

  1. 1.山西大学化学化工学院,环境科学研究所,太原 030006
    2.太原工业学院环境与安全工程系,太原 030008
  • 收稿日期:2024-11-30 接受日期:2025-03-17 出版日期:2025-04-01 发布日期:2025-05-14
  • 通讯作者: 王松柏,董川
  • 作者简介:dc@sxu.edu.cn
    wsb9696@sxu.edu.cn
  • 基金资助:
    山西省回国留学人员科研项目(2021-011);山西省基础研究计划(202103021223351)

Dual Mode Detection of Chlorogenic Acid Based on Silicon Quantum Dot via Fluorescence Spectroscopy and Colorimetric Method

Song-Bai WANG1(), Tian-Yu LI1, Meng-Shu WEI1, Xin-Ming GUO1, Jun-Fen LI1, Ying ZHOU1, Xiu-Ying PENG2, Chuan DONG1()   

  1. 1.School of Chemistry and Chemical Engineering,Institute of Environmental Science,Shanxi University,Taiyuan 030006,China
    2.Department of Environment and Safety Engineering,Taiyuan Institute of Technology,Taiyuan 030008,China
  • Received:2024-11-30 Accepted:2025-03-17 Published:2025-04-01 Online:2025-05-14
  • Contact: Song-Bai WANG,Chuan DONG
  • Supported by:
    Shanxi Scholarship Council of China(2021-011);the Basic Research Project of Shanxi Provincial(202103021223351)

摘要:

通过加热3-氨丙基三乙氧基硅烷(APTES)、抗坏血酸钠和柠檬酸钠制备了一种硅量子点(SiQDs)。利用该SiQDs构建了一种基于静电吸附导致的荧光猝灭和紫外吸收增强双模式的高效、灵敏和便捷的绿原酸(CGA)检测方法。SiQDs具有良好的水溶性以及对CGA优异的选择性,且荧光量子产率高达0.58。在最佳工作条件下,SiQDs的荧光检测线性范围为0.054~265 μmol/L,检出限为0.018 μmol/L。 SiQDs的吸光度检测范围为0.516~45.0 μmol/L,检出限为0.172 μmol/L。 此外,运用加标回收的方法实现了对金银花中绿原酸的分析检测,表现出良好的回收率(97.76%~105.5%)。

关键词: 硅量子点, 3-氨丙基三乙氧基硅烷, 绿原酸, 荧光探针

Abstract:

A silicon quantum dots (SiQDs) was prepared by refluxing 3-aminopropyltriethoxysilane (APTES), sodium ascorbate and sodium citrate with heating at 90 ℃. Based on the SiQDs, an efficient, sensitive and convenient method for the detection of chlorogenic acid (CGA) was constructed based on the dual-mode fluorescence and UV absorption via electrostatic adsorption between SiQDs and CGA. The SiQDs possessed good water solubility as well as excellent selectivity for CGA. The fluorescence quantum yield (QD) of SiQDs was as high as 0.58. Under the optimal working conditions, the linear range of fluorescence detection of SiQDs was 0.054~265 μmol/L, and the limit of detection was 0.018 μmol/L. The absorbance detection of SiQDs was 0.516~45 μmol/L, and the limit of detection was 0.172 μmol/L. In addition, the analytical detection of CGA in Lonicera japonica Thunb. was realized by using the spiked recovery method, which showed good recoveries (97.76%~105.5%).

Key words: Silicon quantum dots, 3-Aminopropyltriethoxysilane, Chlorogenic acid, Fluorescent probe

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