Sensitive surface-enhanced Raman spectroscopy detection of thiram based on hybrid substrate

VernacularTitle:表面增强拉曼光谱技术在农药福美双检测中的应用
Author: Kun GUO ; Xin CHEN ; Lin YE ; Suhong CHEN
Publication Type:Journal Article
Keywords: gold substrate; hybrid substrate; silver sol; surface-enhanced Raman spectroscopy; PATP; thiram
From: Military Medical Sciences 2015;(1):44-47
CountryChina
Language:Chinese
Abstract: Objective To prepare hybrid substrate and apply it to detect thiram with surface-enhanced Raman spectros-copy( SERS) which provides unique molecular vibration information .Methods The Au substrate was prepared by deposi-tion of gold film on the silver substrate that had a rough surface .The Au substrate was treated with amination as a linker with the silver sol before the hybrid substrate was formed .With PATP as a probe molecule ,the Raman intensity of PATP on the Au substrate and the hybrid substrate was compared ,respectively .Results and Conclusion PATP had stronger Raman intensity on hybrid substrate than on the Au , and the detection limit was 10 -9 mol/L.This method can be used for quanti-tative detection on the hybrid substrate by SERS .