摘要
利用RT2000便携式拉曼光谱仪,采用785 nm激光器,采集时间为30 s,对41个不同品牌的食品塑料包装袋样品进行了检验分析。根据不同样品在拉曼光谱图中的位置对样品进行分类,并根据填料的不同对每类样品进行分组。最后根据样品的相对峰高比对每一组中的样品进行区分。建立了一种快速、简便、重现性好、结果准确可靠,且无损样品的检验方法,该方法可为公安机关实际办案提供帮助。
Using RT2000 portable Raman spectrometer with 785 nm laser and 30 s acquisition time,41 samples of food plastic packaging bags of different brands were examined and analyzed.According to the position of different samples in the Raman spectrum,the samples were classified,and each type of samples was grouped according to different fillers.Finally,the samples in each group were distinguished according to the relative peak height ratio of the samples.A rapid,simple,reproducible,accurate and reliable method for the detection of non-destructive samples has been established,which can provide help for the actual handling of cases by public security organs.
作者
张愚若
姜红
刘奎江
陈敏璠
Zhang Yuruo;Jiang Hong;Liu Kuijiang;Chen Minfan(College of Forensic Science,People’s Public Security University of China,Beijing 100038,China;JINSP Co.,Ltd.,Beijing 100084,China)
出处
《上海塑料》
2020年第1期30-34,共5页
Shanghai Plastics
基金
中国人民公安大学2019年度基研费重点项目(2019JKF222)
国家重点研发计划项目(2017YFC0822004)
证据科学教育部重点实验室(中国政法大学)开放基金资助课题(2018KFKT08)。
关键词
食品塑料包装袋
拉曼光谱
填料
相对峰高比
food plastic packaging bag
Raman spectrum
filler
relative peak height ratio
