A novel combined approach of diffuse reflectance UV-Vis-NIR spectroscopy and multivariate analysis for non-destructive examination of blue ballpoint pen inks in forensic application

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• 作者：Raj Kumar ; Vishal Sharma ; ^{vsharma@pu.ac.in}
• 关键词：Discriminating power ; Diffuse reflectance UV&ndash ; Vis-NIR spectroscopy ; Chemometrics ; Principal component analysis
• 刊名：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：175
• 期：Complete
• 页码：67-75
• 全文大小：971 K
• 卷排序：175

文摘

Chemometrics & UV–Vis NIR spectroscopy is applied to differentiate 57 blue ballpoint ink samples. Principal Components (PCs), and K-mean cluster analysis is applied for pairwise discrimination. Comparison of DP obtained by destructive and nondestructive UV–Vis spectroscopy. DP of 99.46% is obtained, not reported by any other group. Fast, Cost-effective, Reliable method to discriminate ink samples.