等离激元增强拉曼光谱食用合成色素快速检测系统设计

发布时间：2018-01-11 18:42

本文关键词：等离激元增强拉曼光谱食用合成色素快速检测系统设计　出处：《光谱学与光谱分析》2016年08期 　论文类型：期刊论文

【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。
[Abstract]:Based on the technique of isolator enhanced Raman spectroscopy, a fast detection system for food synthetic pigment was developed, which is suitable for beverage and meat products. Fast detection of synthetic pigment in preserves and other foods. The hardware part of the detection system is mainly composed of dual CPU(ARM and FPGA main control board, sample pretreatment module (containing enhanced particle application device). Semiconductor laser light source, spectral data acquisition module; The software partially controls the automatic operation of the sample pretreatment module, and can read the Raman spectrum of the tested sample. The food synthetic pigment carmine in three real samples (candied fruit, soda, ham sausage) is detected by the rapid detection system. Lemon yellow and seductive red were detected to verify the performance of the system in the determination of food synthetic pigments. The relative standard deviation of the sample detection results was less than 卤5%. The results show that the system has good sensitivity, reproducibility and short detection time. It can meet the requirements of rapid detection of synthetic pigments in food.
【作者单位】：厦门大学航空航天学院;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;
【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
【分类号】：O657.37;TS264.4
【正文快照】： 谱(plasmon-enhanced Raman spectroscopy,PERS)技术的日弓|言趋成熟,拉曼光谱信号增强因子达到l04?10s,极大地拓宽了拉曼光谱检测系统的应用范围[9]。结合其快速、简便、对近年来,合成色素因成本低廉、色泽鲜艳、着色力强等样品无接触、无损伤等特点,在现场快速检测方面表

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