文献类型：期刊文献

中文题名：基于凹形金纳米箭头的苹果汁中福美胂的SERS检测

英文题名：Detection of Asomate in Apple Juice Based on Surface Enhanced Raman Scattering Combined with AuCNAs

作者：赵丽娜[1];沈烨[1];商显文[1];陈智扬[1];石吉勇[1];郑开逸[1];孙正东[2];张孟[2]

机构：[1]江苏大学食品与生物工程学院,江苏镇江212013;[2]华东理工大学物理学院,上海200237

年份：2025

卷号：44

期号：7

起止页码：1346

中文期刊名：分析测试学报

外文期刊名：Journal of Instrumental Analysis

收录：;北大核心:【北大核心2023】；

基金：国家重点研发计划项目(2017YFD0400102);国家自然科学基金项目(31972153);国家博士后资助项目(2019M661758);江苏省博士后资助项目(2019K014);江苏大学基金项目(19JDG010)。

语种：中文

中文关键词：福美胂;表面增强拉曼光谱;凹形金纳米箭头;农药残留;苹果汁

外文关键词：asomate;surface enhanced Raman spectroscopy;AuCNAs;pesticide residue;ap?ple juice

摘要：该文提出了一种用凹形金纳米箭头(AuCNAs)作为表面增强拉曼光谱(SERS)基底,快速检测苹果汁中福美胂残留的方法。先用种子生成法制备金纳米棒(AuNRs),在AuNRs的基础上合成了AuCNAs,并对AuCNAs的各项指标进行了检测。结果表明,AuCNAs具有良好的稳定性、均匀性和重复性。其对福美胂的增强因子高达1.10×10^(6),与其他纳米球、纳米棒相比,AuCNAs具有更好的SERS增强性质。通过分子模拟,对福美胂进行峰位归属。利用特征峰1382 cm^(-1)处的强度与福美胂残留浓度建立校正曲线(r^(2)为0.9927),得到福美胂的检出限(LOD)为8.93 nmol/L。回收实验显示苹果汁中福美胂的平均回收率为96.2%~109%,相对标准偏差为4.2%~8.8%。该实验表明AuCNAs作为SERS增强基底能够较好地检测苹果汁中的福美胂。
Surface enhanced Raman spectroscopy(SERS)is an analysis technique that improves Ra?man signals through rough metal nanoparticles,with the advantages of high sensitivity,strong speci?ficity and simple operation.Therefore,this paper proposed a method to rapidly detect the residue of asomate in apple juice using concave Au nano-arrows(AuCNAs)as SERS substrate.The Au nanorods(AuNRs)were prepared based on seed-mediated growth strategy,and then used for the synthesis of AuCNAs.After that,the synthesized AuCNAs were analyzed to show good stability,homogeneity and repeatability.Meanwhile,the AuCNAs achieved high enhancement factor(1.10×10^(6)).Com?pared to other nanospheres and nanorods,AuCNAs had significantly better SERS enhancement prop?erties.The locations of SERS peaks can be attributed to the vibrations of chemical bonds through mo?lecular simulation.The intensity at the Raman peak of 1382 cm^(-1) was used to establish a correction curve with the residual concentrations of asomate in apple juices,and the limit of detection(LOD)of asomate was 8.93 nmol/L.The recovery experiments showed that the average recoveries of asomate in apple juice was 96.2%-109%with relative standard deviations ranging of 4.2%-8.8%.The results in?dicated that AuCNAs can be used as SERS enhanced substrates to detect asomate in apple juice.