杭州师范大学学报（自然科学版）2024，Vol.23Issue(4)：388-394,7.DOI:10.19926/j.cnki.issn.1674-232X.2024.01.042
基于水热法合成氮掺杂碳点荧光增强检测阿司匹林
Determination of Aspirin by Nitrogen-doped Carbon Dot Fluorescence Enhancement Based on Hydrothermal Method
摘要
Abstract
Using salicylic acid as carbon source and ammonium carbonate as nitrogen source,a water-soluble nitrogen-doped carbon quantum dots(N-CQDs)with blue fluorescence under 365 nm ultraviolet light were synthesized by a one-step hydrothermal method.The fluorescence quantum yield of the N-CQDs was 19.8%.Transmission electron microscopy(TEM)showed that the morphology of the N-CQDs was nearly spherical,and the average particle size was about 7.2 nm.X-ray electron diffractometer(XRD),Fourier transform infrared spectrophotometer(FTIR),ultraviolet spectrophotometer and fluorescence spectrophotometer were used to characterize the structure and properties of the composite.The experiment found that aspirin(ASA)had a sensitizing effect on the fluorescence of N-CQDs.Based on this,a rapid quantitative method for aspirin detection was established.The linear range was 0-80 μmol/L,and the detection limit was 0.046 μmol/L.The recovery rate was 95.3%-105.2%when the fluorescent sensor was applied to real samples.关键词
氮掺杂碳点/阿司匹林/荧光增强Key words
nitrogen-doped carbon dots/aspirin/fluorescence enhancement分类
化学化工引用本文复制引用
卜晓阳,李萍,周思了,陈云艳..基于水热法合成氮掺杂碳点荧光增强检测阿司匹林[J].杭州师范大学学报（自然科学版）,2024,23(4):388-394,7.基金项目
安徽省自然科学基金项目(2108085QH370) （2108085QH370）
皖南医学院中青年科研基金项目(wk202008) （wk202008）
2023年度国家科学中心大健康研究院新安医学与中医药现代化研究所"揭榜挂帅"项目(2023CXMMTCM023). （2023CXMMTCM023）
