摘要
为实现现场残留手帕纸塑料包装袋的检验区分,利用拉曼光谱法对35个不同品牌、不同系列、不同颜色的样本进行检验,依据拉曼光谱的差异,基于欧氏距离结合K均值聚类法,可将手帕纸塑料包装袋样本加以区分,同时考察了该法的重现性及分类可靠性。该检测分类方法不破坏检材,重现性好,分类客观性强,容错率高。为后续快速检验区分现场提取到的污染易损残片提供了理论依据。
To study the classification of on - site residual handkerchief paper plastic packaging bags , 35samples of different brands , different series and different colors were tested by Ra - man spectroscopy.According to the absorption peaks in Raman spectra , combined with K - means clustering method , different types of handkerchief paper plastic bag samples can be distinguished after the use of smooth function and similarity discrimination.The reproduc - ibility and minimum detection amount are also investigated.These methods can protect the samples and has good reproducibility.Their objectivity is strong and they have low environ - ment requirement.The paper provides a theoretical basis for the subsequent inspection to dis - tinguish the contaminated and vulnerable fragments extracted.
作者
徐乐乐
姜红
叶瀚
霍安达
张丽文
XU Lele;JIANG Hong;YE Han;HUO Anda;ZHANG Liwen(People’s Public Security University of China,Beijing100038,China;Zolix Instruments Co.,Ltd.,Beijing101102,China)
出处
《光散射学报》
2019年第2期166-172,共7页
The Journal of Light Scattering
关键词
拉曼光谱法
K均值聚类法
手帕纸塑料包装袋
Raman spectroscopy
K - means clustering
Plastic Handkerchief Paper Packaging Bag
