Investigation and Discrimination of Ballpoint Pen Inks by Analytical Techniques and Chemometrics

被引：3
|
作者：
Sharif, Mehwish [1 ]
Chand, Sohail [2 ]
Tirmazi, Syed Azhar Ali Shah [1 ]
Farooq, Umar [1 ]
Athar, Muhammad Makshoof [1 ]
Batool, Madeeha [1 ]
机构：
[1] Univ Punjab, Sch Chem, Lahore 54590, Pakistan
[2] Univ Punjab, Coll Stat & Actuarial Sci, Lahore 54590, Pakistan
来源：
INTERNATIONAL JOURNAL OF ANALYTICAL CHEMISTRY | 2022年 / 2022卷
关键词：
QUANTITATIVE DIFFERENTIATION METHOD; PRINCIPAL COMPONENT ANALYSIS; THIN-LAYER-CHROMATOGRAPHY; FORENSIC DISCRIMINATION; INFRARED-SPECTROSCOPY; MULTIVARIATE-ANALYSIS; RAMAN-SPECTROSCOPY; PLASTIC BAGS; BLACK; CLASSIFICATION;
D O I：
10.1155/2022/7450539
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A population study has been performed for Pakistani ballpoint pen inks of blue, black, red, and green colors (a total of four colors) commercially used in Pakistan. Ballpoint pen inks have been investigated and discriminated by using UV/Vis spectroscopy and FTIR spectroscopy. We have calculated and compared the results in terms of discriminating power (DP). The statistical techniques of principal component analysis and cluster analysis have been applied on obtained data. By visual comparison, the best DP is obtained for green ballpoint pen inks, i.e., 0.866 by using UV/Vis spectroscopy and FTIR techniques. Black and red ballpoint pen inks showed the highest DPs by using UV/Vis spectroscopy; however, blue ballpoint pen inks got the highest DP by using FTIR spectroscopy. DP has been improved by using chemometric techniques and higher DPs are obtained as compared to visual examination.
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收藏
页数：13
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