基于表面增强拉曼光谱技术对医疗美容产品中正壬酸香草酰胺的快速检测  

Rapid detection of nonivamide in medical beauty products based on surface enhanced Raman spectroscopy

作　　者：周家羽 周光明 陈蓉 黄子怡 ZHOU Jiayu;ZHOU Guangming;CHEN Rong;HUANG Ziyi(Key Laboratory of Luminescence and Real-time Analysis of the Ministry of Education,School of Chemistry and Chemical Engineering,Southwest University,Chongqing 400715)

机构地区：[1]西南大学化学化工学院,发光与实时分析教育部重点实验室,重庆400715

出　　处：《分析试验室》2021年第3期255-259,共5页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金(21277110)项目资助。

摘　　要：以银纳米线为拉曼基底,运用表面增强拉曼光谱技术(SERS)建立了对发热剂中正壬酸香草酰胺的检测方法。采用简便有效的两步滴加多元醇法制备了具有SERS活性的银纳米线,利用扫描电镜和紫外-可见光谱仪对银纳米线进行了表征。对正壬酸香草酰胺进行了SERS研究并对正壬酸香草酰胺的SERS谱带进行了归属。正壬酸香草酰胺的质量浓度在1~1.0×10^(-8)mg/L范围内与其在1588 cm^(-1)处的SERS特征峰强度有良好的线性关系,方法的最低检出浓度可达0.66 pg/L。对样品进行前处理后,运用加标回收法考察其回收率。该方法可以用于发热剂中正壬酸香草酰胺的检测。A surface-enhanced Raman(SERS) analytical method based on silver nanowires as Raman substrates has been established for the determination of nonivamide in medical beauty products.SERS active silver nanowires were prepared by a facile and effective two-step dropwise addition polyol method,and were characterized by scanning electron microscopy and UV-Vis spectroscopy.Silver nanowires were chosen as SERS substrates to detect trace nonivamide and the SERS peaks were assigned.Under the optimized conditions,the linear regression equation was established between the concentration of nonivamide residues and the peak intensity when the concentration range of nonivamide residues was 1-1.0 × 10^(-8) mg/L.After the sample treatment,the recoveries were investigated by standard addition recovery method.This method can be used for the detection of nonivamide in heating agents.

关 键 词：表面增强拉曼光谱 银纳米线 正壬酸香草酰胺 发热剂 

分 类 号：O657.3[理学—分析化学]