Preparation of a Fluorescent Nanosensor Based on NaYF4∶Yb3+,Er3+@SiO2 for Detection of Hydrogen Peroxide in Milk
10.19756/j.issn.0253-3820.241007
- VernacularTitle:NaYF4:Yb3+,Er3+@SiO2荧光纳米传感器检测牛奶中过氧化氢
- Author:
Kong-Hao PENG
1
;
Wei PENG
;
An-Qi BAI
;
Ling-Nan WANG
;
Wei-Xin ZHAO
;
Yue WU
;
Wen GUO
;
Shu-Rong LI
;
Li-Xia LUO
;
Pei-Jun MENG
Author Information
1. 包头医学院公共卫生学院,包头 014040
- Keywords:
Rare-earth-elements-doped upconversion nanoparticles;
Hydrogen peroxide;
Fluorescent nanosensor;
Fluorescence quenching
- From:
Chinese Journal of Analytical Chemistry
2024;52(5):685-694
- CountryChina
- Language:Chinese
-
Abstract:
The rare-earth-elements-doped upconversion nanoparticles NaYF4:Yb3+,Er3+were synthesized by solvothermal method,and NaYF4:Yb3+,Er3+@SiO2 were prepared by coating SiO2 on the surface of NaYF4:Yb3+,Er3+by inverse microemulsion method in this work.Based on the fluorescence quenching principle between NaYF4∶Yb3+,Er3+@SiO2 and SQA-Fe3+,a NaYF4∶Yb3+,Er3+@SiO2-SQA-Fe3+fluorescence nanosensor was constructed for detection of trace hydrogen peroxide(H2O2).Under optimal conditions,the linear range of this method for detecting H2O2 was 1.8?84.0 μmol/L,with detection limit(3σ)of 0.47 μmol/L.The recoveries of H2O2 spiked in milk were 98.4%?99.7%.This method could be used for detection of H2O2 residue in milk samples,with advantages such as low detection limit,good stability and strong anti-interference ability.
