School of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China.
School of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China.
Food Chem. 2023 Dec 15;429:136926. doi: 10.1016/j.foodchem.2023.136926. Epub 2023 Jul 20.
Silver nanoparticles can be used in antibacterial packaging or disinfection. Research has shown that sugary fluid induces the leaching of silver nanoparticles into water, which may be harmful to humans. Single wavelength fluorescence analysis has been used for quantitative analysis of silver nanoparticles but suffers from low specificity and poor anti-interference ability. In this paper, a ratiometric fluorescence sensor system (GCS) was used for the detection of Ag, which realized both visual detection and quantitative analysis of silver in drinks. The color changes of GCS with different concentrations of Ag are distinguishable and easy to analyze. There is also a good linear relationship between the concentrations of Ag and varieties of F/F, and the lowest detection limit reached 0.2266 nmol/L. This GCS shows good selectivity and recovery and could be used for the detection of Ag in drink samples.
银纳米粒子可用于抗菌包装或消毒。研究表明，含糖液体可诱导银纳米粒子浸出到水中，这可能对人体有害。单波长荧光分析已被用于银纳米粒子的定量分析，但存在特异性低和抗干扰能力差的问题。本文使用比率荧光传感器系统（GCS）检测 Ag，实现了对饮料中银的可视化检测和定量分析。GCS 对不同浓度 Ag 的颜色变化具有可分辨性，易于分析。Ag 的浓度与 F/F 的种类之间也存在良好的线性关系，最低检测限达到 0.2266 nmol/L。该 GCS 具有良好的选择性和回收率，可用于饮料样品中 Ag 的检测。
