等离激元增强拉曼光谱食用合成色素快速检测系统设计  

Design of Raman Spectroscopy Rapid Detection System for Synthetic Edible Pigment Based on PERS

作　　者：范贤光[1] 梁骏[1] 王昕[1] 许英杰[1] 阙靖 左勇[2] 

机构地区：[1]厦门大学航空航天学院,福建厦门361005 [2]北京长城计量测试技术研究所国防科技工业第一计量测试研究中心,北京100095

出　　处：《光谱学与光谱分析》2016年第8期2487-2491,共5页Spectroscopy and Spectral Analysis

基　　金：国家重大科学仪器设备开发专项(2011YQ03012417);厦门大学中央高校基本科研业务费项目(20720150091;20720150094);福建省高端装备制造协同创新中心资金项目资助

摘　　要：基于等离激元增强拉曼光谱技术,研制出适合现场分析检测的食用合成色素快速检测系统,适用于饮料、肉制品、蜜饯等食品中合成色素的快速检测。检测系统的硬件部分主要由双CPU(ARM和FPGA)主控板、样品前处理模块(含有增强粒子施加装置)、半导体激光光源、光谱数据采集模块构成;软件部分控制样品前处理模块自动运行,并可读取被测样品的拉曼谱图。利用快速检测系统对三种实际样品(蜜饯、汽水、火腿肠)中的食用合成色素胭脂红、柠檬黄、诱惑红进行检测,以验证该系统在食用合成色素检测中的性能。样品检测结果的相对标准偏差小于±5%,表明此检测系统具有良好的灵敏度和重现性,且检测时间短,能够满足食品中合成色素现场快速检测的要求。Based on Plasmon-enhanced Raman Spectroscopy（PERS） technology,the detection system for rapid field determination of synthetic edible pigments in food,such as beverage,meat productsand preserves,is presented.The hardware framework of this detection system is mainly composed of double central control chips（ARM and FPGA）,a sample pretreatment module（containing a nanoparticle giving device）,a laser diode source,and a spectral data acquisitioning module;Besides,the software can run the sample pretreatment module automatically while receiving the Raman spectrogram.To verify its performance in edible synthetic pigments,the rapid detection system was applied to determine carmine,citrine,allure red in three actual samples（i.e.preserves,sodas,sausage）.The relative standard deviations of the sample detection were in the range of ±5%,which indicated that the system developed in this paper have the advantage of favorable sensitivity,excellent repeatability and short testing time.Thus,it meets the requirements for rapid field determination of synthetic pigments in food.

关 键 词：等离激元增强拉曼光谱 合成色素 样品前处理 检测系统 

分 类 号：O657.3[理学—分析化学]