NaYF4:Yb3+,Er3+@SiO2荧光纳米传感器检测牛奶中过氧化氢OA北大核心CSTPCD
Preparation of a Fluorescent Nanosensor Based on NaYF4∶Yb3+,Er3+@SiO2 for Detection of Hydrogen Peroxide in Milk
采用溶剂热法合成了稀土掺杂上转换纳米材料NaYF4:Yb3+,Er3+,使用反相微乳液法对其表面进行SiO2包覆制得NaYF4:Yb3+,Er3+@SiO2.采用透射电镜、X射线衍射和傅里叶红外光谱对此材料进行了表征,并基于NaYF4:Yb3+,Er3+@SiO2 与方酸铁(SQA-Fe3+)之间的荧光猝灭原理构建了NaYF4:Yb3+,Er3+@SiO2-SQA-Fe3+荧光纳米传感器,用于微量过氧化氢(H2O2)的检测.在最佳实验条件下,本方法检测H2O2 的线性范围为 1.8～84.0 μmol/L,检出限(3σ)为0.47 μmol/L,牛奶样品中H2O2 的加标回收率为98.4%～99.7%.本方法具有检出限低、稳定性好以及抗干扰能力强等优点,可用于牛奶样品中H2O2 残留的检测.
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.
彭孔浩;孟佩俊;彭微;白安琪;王凌男;赵伟馨;武玥;郭文;李淑荣;罗利霞
包头医学院公共卫生学院,包头 014040包头医学院公共卫生学院,包头 014040||内蒙古自治区卫生检测与评价工程技术中心,包头 014040
稀土掺杂上转换纳米材料过氧化氢荧光纳米传感器荧光猝灭
Rare-earth-elements-doped upconversion nanoparticlesHydrogen peroxideFluorescent nanosensorFluorescence quenching
《分析化学》 2024 (005)
基于CE (SEC-HPLC)-ICP-MS的稀土掺杂上转换纳米颗粒形态分析的方法建立及其应用
685-694 / 10
国家自然科学基金项目(Nos.81960601,82360656)、内蒙古自治区高等学校青年科技英才支持项目(No.NJYT23026)、内蒙古自治区自然科学基金项目(Nos.2023MS08009,2021MS08055)、内蒙古自治区卫生健康委医疗卫生科技计划项目(No.202201383)、包头医学院研究生科研创新项目(No.bycx2023006)和2023年自治区级大学生创新创业训练计划项目(No.S202310130001)资助. Supported by the National Natural Science Foundation of China(Nos.81960601,82360656),the Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region(No.NJYT23026),the Provincial Natural Science Foundation of Inner Mongolia Autonomous Region(Nos.2023MS08009,2021MS08055),the Medical and Health Technology Plan Project of Health Commission of Inner Mongolia Autonomous Region(No.202201383),the Baotou Medical College Graduate Research Innovation Project(No.bycx2023006)and the College Students'Innovative Entrepreneurial Training Plan Program of Inner Mongolia Autonomous Region in 2023(No.S202310130001).
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