激光与光电子学进展, 2014, 51 (7): 073004, 网络出版: 2014-06-26
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
光谱学 甲萘威 表面增强拉曼光谱 快速检测 表面增强试剂 spectroscopy carbaryl surface enhanced Raman spectroscopy rapid determination surface strengthening agents
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。
Abstract
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.
胡琪, 赵进辉, 袁海超, 洪茜, 肖海斌, 刘木华. 基于表面增强拉曼光谱的甲萘威水溶液检测分析[J]. 激光与光电子学进展, 2014, 51(7): 073004. Hu Qi, Zhao Jinhui, Yuan Haichao, Hong Qian, Xiao Haibin, Liu Muhua. Detection and Analysis of Carbaryl Solution Based on Surface Enhanced Raman Spectroscopy[J]. Laser & Optoelectronics Progress, 2014, 51(7): 073004.