激光与光电子学进展, 2018, 55 (3): 030004, 网络出版: 2018-09-10
表面增强拉曼光谱技术在毒品检测中的应用 下载: 2126次
Application of Illegal Drugs Detection Based on Surface Enhanced Raman Spectroscopy
图 & 表
图 2. 微流体装置和SERS联通探测唾液中毒品的原理图。(a) Ag悬浮颗粒、唾液、盐溶液通过真空抽运加载进微流体装置;(b)在流动聚焦结处样品流被侧流包围,扩散驱动层流之间的侧向质量输运;(c) Ag纳米颗粒、分析物、盐溶液在通道内自左向右流动示意图[5]
Fig. 2. Combination of microfluidic device and SERS for detection of drugs in saliva. (a) Ag nanoparticle suspension, saliva, and salt solution are loaded into microfluidic device by vacuum pump; (b) sample stream is enveloped by side-streams at flow-focusing junction and diffusion drives lateral mass transport between laminar flows; (c) schematic of Ag nanoparticles, analyte, and salt solution are introduced to the channel from the left and flow toward the right[5]
图 3. (a) Ag纳米颗粒自聚集成球形Ag胶体超结构原理图;(b) SERS平台检测位于3D胶体超结构间隙的分析物原理图[11]
Fig. 3. (a) Schematic of self-assembly of Ag NPs into spherical Ag colloidal superstructures; (b) schematic of SERS platform for sensing analytes located in 3D geometrical gaps of colloidal superstructure[11]
图 4. 尿液中毒品检测比较示意图。(a)标准检测程序;(b) D-SERS和SVM联用方法[6]
Fig. 4. Comparison of drugs detection in urine. (a) Standard detection procedure; (b) combination of D-SERS and SVM[6]
图 5. 3种质量分数分别为3×10-5、3×10-6、4×10-7的MAMP毒品滥用者尿液的SERS光谱空间分布(点线为有无MAMP成分尿液的分界线)[6]
Fig. 5. Space distribution of SERS spectra of three kinds of drug abusers'urine samples containing MAMP mass fraction of 3×10-5, 3×10-6, and 4×10-7 (dotted line represents boundary of urine with or without MAMP)[6]
表 1文献报道的毒品的SERS检测参数
Table1. SERS detection parameters of illegal drugs reported in literatures
|
卢树华, 王照明, 田方. 表面增强拉曼光谱技术在毒品检测中的应用[J]. 激光与光电子学进展, 2018, 55(3): 030004. Shuhua Lu, Zhaoming Wang, Fang Tian. Application of Illegal Drugs Detection Based on Surface Enhanced Raman Spectroscopy[J]. Laser & Optoelectronics Progress, 2018, 55(3): 030004.