摘要
为建立一种简单快捷无损地区分塑料针剂底托的方法,采用便携式差分拉曼光谱仪对57个注射针剂塑料底托进行检测,首先通过直接观察,根据样品透明与否分类,再根据得到的差分拉曼光谱图的峰位、峰数等对样品进行成分和填料分析,同时利用系统聚类和皮尔逊相关系数分析来验证判别结果的准确性。实验结果表明,透明类样品主要成分为聚氯乙烯和聚对苯二甲酸乙二醇酯,不透明类样品主要成分为聚氯乙烯、聚对苯二甲酸乙二醇酯和聚苯乙烯,利用统计分析软件“统计产品与服务解决方案”(SPSS 26.0)聚类分析对透明类样品分类进行验证,分类结果可靠。以透明聚氯乙烯类样品为例,根据填料不同可将其分为6组,选取一组样品为例,可利用相对峰高比对其进行明显区分,再选取一组样品利用皮尔逊相关系数验证,组内样品相关性高。
Aiming to establish a method to distinguish plastic injection bases,portable differential Raman spectrometer was used to test 57 plastic injection tap samples.The samples could be preliminarily divided into two groups according to the color was transparent or not.On the grounds of the peak number and peak position of the differential Raman spectrum,the composition and filler of the plastic injection base could be analyzed.At the same time,the accuracy of discrimination results could be verified by analyzing the Raman spectral data with system clustering and Pearson correlation coefficient analysis.The results indicate that the main components of transparent samples are polyvinyl chloride(PVC)and polyethylene terephthalate(PET).The main components of opaque samples are PVC,PET and polystyrene.The classification results are proved to be reliable through the verification of statistical product and service solutions(SPSS 26.0)cluster analysis.In addition,PVC samples are divided into 6 groups according to different fillers,and the samples in each group can be clearly distinguished by relative peak-to-height ratios.The correlation of samples in each group is high based on the Pearson correlation coefficient.
作者
陈丽萍
张斯昱
姜红
段斌
刘峰
CHEN Liping;ZHANG Siyu;JIANG Hong;DUAN Bin;LIU Feng(Investigation Institute,People's Public Security University of China,Beijing 100038,China;Nanjing Jianzhi Instrument and Equipment Co.,Ltd.,Nanjing 210049,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2022年第3期116-120,共5页
China Plastics Industry
基金
中国人民公安大学2021年度基科费重点项目(2021JKF212)
南京简智仪器设备有限公司技术合作项目(20191218)。
关键词
差分拉曼
塑料针剂底托
聚类分析
皮尔逊相关系数
检验
Differential Raman
Plastic Injection Base
Cluster Analysis
Pearson Correlation Coefficient
Test
