Fabrication of Non-woven Fabric-Based SERS Substrate for Direct Detection of Pesticide Residues in Fruits

作     者：Lemei Cai Zhuo Deng Jing Dong Shidong Song Yiru Wang Xi Chen 

作者机构：Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and InstrumentationCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China State Key Laboratory of Marine Environmental ScienceXiamen UniversityXiamenFujian 361005China 

出 版 物：《Journal of Analysis and Testing》 (分析检测（英文）)

年 卷 期：2017年第1卷第4期

页      面：322-329页

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070302[理学-分析化学] 0703[理学-化学] 

基　　金：Natural Science Foundation of Fujian Province(No.2015J01058)and NFFTBS(No.J1310024)which are gratefully acknowledged 

主　　题：SERS Non-woven fabric Flexible substrate Pesticide residues 

摘      要：In surface-enhanced Raman scattering(SERS),flexible substrate plays an important role in target molecular collection from various shape surfaces and increases the analytical *** this study,silver nanoparticles(Ag NPs)were deposited on a non-woven fabric used as an SERS substrate by self-assembly,in situ growing or the self-assembly/in situ growing combination method.4-Aminothiophenol was selected as a model molecular for the evaluation of the SERS performance using the *** Ag NPs substrate prepared by self-assembly/in situ growing method presented the best Raman enhancement effect and its enhancement factor was estimated as high as *** substrate was applied to the determination of four pesticide residues on the surfaces of fruit samples through wipe sampling,and the results revealed the good reproducibility of SERS responses and high detection *** prepared flexible substrate was simple to fabricate and environmentally *** could be expected to be a useful tool in rapid on-site test of pesticide residues on fruit surfaces because of its high sensitivity,convenience and non-destructive characteristics.