摘要
以表面增强拉曼光谱(SERS)方法对2-巯基苯并咪唑(2-MBI)进行了研究,以自组装在玻璃基片上的银纳米膜作为SERS增强基底,采集了2-MBI的SERS光谱图,并对其拉曼特征峰进行了指认。研究了吸附时间和分子浓度对拉曼光谱的影响,以411cm^(-1)拉曼谱峰为定性和定量分析的特征峰。在10-6~10-3mol·L^(-1)浓度范围内拉曼光谱强度与2-MBI浓度的负对数呈现较好的线性关系,线性方程为I=1 237.8logc+8 326.3,线性相关系数为0.999 8,相对标准偏差在0.025~0.084之间,此方法检测2-MBI的检测限为10-7 mol·L^(-1)。这些研究为发展新的针对2-MBI的检测方法奠定了基础。
In this study the surface enhanced Raman spectroscopy（SERS）was employed to study the detection of 2-MBI.The self-assembly silver nanoparticle films on glass slides were used as SERS substrates.SERS spectra were obtained and the characteristic bands were assigned.The time and concentration dependent experiments were conducted and finally the optimized experimental conditions were confirmed to achieve the qualitative and quantitative analysis.The SESR band at 411cm-1 was selected as the characteristic peak to do the qualitative and quantitative analysis.The results show that there was a linear correlation between the band intensity and the minus logarithm of concentration in the range of I=1 237.8logc＋8 326.3,while the linear correlation coefficient was 0.999 8.The relative standard deviation was between 0.025~0.084.The detection limit was 10-7 mol·L-1.It is concluded that this research has a great potential application in 2-MBI detection.
作者
陈玉锋
杨津
庄志萍
阮伟东
赵冰
CHEN Yu-feng YANG Jin ZHUANG Zhi-ping RUAN Wei-dong ZHAO Bing(State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China College of Chemistry and Chemical Engineering, Mudanjiang Normal University, Mudanjiang 157012, China)
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2017年第7期2057-2060,共4页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金项目(21273091
21221063
21327803
21411140235)
高等学校博士学科点专项科研基金项目(20110061110017)
吉林省科技厅重点项目(20130508)
博士后科学基金项目(2014M561286)资助
关键词
表面增强拉曼光谱
2-巯基苯并咪唑
检测
2-mercaptobenzimidazole（2-MBI）
Surface enhanced Raman spectroscopy（SERS）
Detection
