基于表面增强拉曼光谱的甲萘威水溶液检测分析  

Detection and Analysis of Carbaryl Solution Based on Surface Enhanced Raman Spectroscopy

作　　者：胡琪[1] 赵进辉[1] 袁海超[1] 洪茜[1] 肖海斌[1] 刘木华[1] 

机构地区：[1]江西农业大学工学院/生物光电及应用重点实验室,江西南昌330045

出　　处：《激光与光电子学进展》2014年第7期188-193,共6页Laser & Optoelectronics Progress

基　　金：国家科技支撑计划课题(2012BAK17B02);江西省科技厅对外科技合作计划项目(20132BDH80005);江西省科技厅科技支撑项目(20121BBG70058);江西省教育厅科技计划项目(GJJ12244)

摘　　要：以表面增强试剂OTR202 和OTR103 作为表面增强拉曼光谱（SERS）的活性基底，探索建立甲萘威水溶液的SERS 检测方法。首先对比分析了甲萘威水溶液的普通拉曼光谱与SERS。然后分析了表面增强试剂与待测样本的加入量对甲萘威水溶液的SERS 的影响。最后分析了质量浓度在0.1～15.0 mg/L 范围内的甲萘威水溶液的SERS，并以1374 cm^-1 处的特征峰强度与甲萘威水溶液浓度进行线性回归，得到线性方程为y=414.5x＋481.59，决定系数R2=0.9864。试验结果表明该研究方法对甲萘威水溶液的检测限可达到0.1 mg/L，说明以表面增强试剂OTR202 和OTR103 为SERS 活性基底的SERS 检测方法可用于水中甲萘威残留检测。The surface strengthening agents OTR202 and OTR103 are used as active substrate of the surface enhanced Raman spectroscopy （SERS）, and the rapid detection method of the carbaryl solution based on SERS is explored in this research. Firstly, the contrastive analysis of the normal Raman and SERS spectra of the carbaryl solution is proposed. Secondly, the effect of the surface strengthening agents and the addition amount of the measured samples on SERS spectra of the carbaryl solution is investigated. Lastly, SERS spectra of the carbaryl solution in the concentration range of 0.1～15.0 mg/L are analyzed. The linear regression is made between the intensity of characteristic peaks at 1374 cm^-1 and the concentration of the carbaryl solution, the linear regression equation is y=414.5x ＋ 481.59, and the determination coefficient R2 is 0.9864. The experimental results show that the detection limit for the carbaryl solution is 0.1 mg/L, and the detection method, which is applied in the surface strengthening agents OTR202 and OTR103 as active substrate, can be used to detect the carbaryl residue in water.

关 键 词：光谱学 甲萘威 表面增强拉曼光谱 快速检测 表面增强试剂 

分 类 号：O657.31[理学—分析化学] O433.4[理学—化学]