透明柔性胶带包覆AuNPs/ITO基底应用于农药SERS光谱分析  

Transparent flexible tape coated AuNPs/ITO substrate for pesticide SERS spectral analysis

作　　者：邱琼 代瑞红 刘晓琳 张峰 曹晓卫 QIU Qiong;DAI Ruihong;LIU Xiaolin;ZHANG Feng;CAO Xiaowei(College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234)

机构地区：[1]上海师范大学化学与材料科学学院,上海200234

出　　处：《光散射学报》2020年第2期125-131,共7页The Journal of Light Scattering

基　　金：国家自然科学基金项目(No.20775049);上海市自然科学基金项目。

摘　　要：从复杂样表面有效提取目标分析物对于将表面增强拉曼散射(SERS)光谱技术推广到实际应用具有重要意义。本文通过利用透明性和粘合性的胶带与具有良好SERS活性的沉积在铟锡氧化物导电玻璃(ITO)表面的金纳米粒子阵列(AuNPs)相复合作为SERS基底,提出了一种应用于果蔬农药残留的SERS光谱快速检测方法。采用柔性胶带将分析物从实际的样品表面方便快捷地转移到作为SERS基底的金纳米粒子阵列(AuNPs/ITO)上,通过简捷的“粘贴,剥离和再粘贴”的过程直接提取水果和蔬菜表面的农药残留,如福美双等,实现对果蔬农药残留的SERS光谱快速检测。这一研究能够为相关检测技术的建立提供有益的信息。The effective extraction of target analytes from complex surface is of great significance for the extension of surface enhanced Raman scattering(SERS)spectroscopy to practical applications.In this paper,a composite of the gold nanoparticles array(AuNPs)deposited on the surface of indium tin oxide conductive glass(ITO)with good SERS activity is used as a SERS substrate by using a transparent and adhesive tape.A rapid detection method for SERS measurement with pesticide residues was established.Flexible tape was used for direct extraction of the anlytes from actual fruit and vegetable surfaces and then coated onto the gold nanoparticle array(AuNPs/ITO)used as a SERS substrate for SERS spectroscopic analysis.Through a simple“paste,peel and re-paste”process,the analytes can be effectivly collected for SERS measurements,and pesticide residues from fruits and vegetables,such as thiram,can be analyzed rapidly by SERS spectroscopic measurements.This research can provide useful information for the establishment of a relevant detection technique.

关 键 词：表面增强拉曼散射光谱 胶带 金纳米粒子 电沉积 福美双 

分 类 号：O657.37[理学—分析化学]