基于拉曼光谱和多元统计学研究蓝色中性笔油墨

拉曼光谱作为一种无损检验的技术手段,近年来广泛用于文件检验领域中的书写材料种类检验。本实验采集了市面上收集到的28支蓝色中性笔油墨的拉曼光谱图,结合化学计量学中的相似度分析法和主成分分析法对谱图进行了分析,两种分析方法得到的分类结果基本一致,采用两种方法可以将28支蓝色中性笔油墨分为五类。实验结果表明,将拉曼光谱法得到的数据结合化学计量学分析方法进行数据分析,比直接比较谱图得到的分类结果更加客观、准确。

Study on Blue Gel Pen Inks Based on Raman Spectroscopy and Multivariate Statistical

As a non-destructive analysis technology,Raman spectroscopy,has been widely used in writing materials analysis in the field of document examination in recent years.This study was combined the similarity analysis and principal component analysis (PCA) in chemometrics with Raman spectra data of 28 blue gel pen inks collected on market.The results of classification by two analysis methods were almost accordant,which the 28 blue gel pen inks could be divided into five categories using two methods.The results showed that the data obtained from Raman spectroscopy combined with chemometrics analysis method for data analysis and identification,was more objective and accurate than the direct comparison of spectra.