Multivariate analysis for forensic characterization, discrimination, and classification of marker pen inks

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F18%3A43913942" target="_blank" >RIV/62156489:43410/18:43913942 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1080/00387010.2018.1452265" target="_blank" >https://doi.org/10.1080/00387010.2018.1452265</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/00387010.2018.1452265" target="_blank" >10.1080/00387010.2018.1452265</a>

Result language

angličtina

Original language name

Multivariate analysis for forensic characterization, discrimination, and classification of marker pen inks

Original language description

The multivariate analysis methods have recently gained high popularity within the field of forensic sciences because of their high accuracy and precision. The accurate and unbiased results are the preliminary need for a forensic investigation. The aim of the present work is to examine the marker pen inks which are widely used in various places like documentation in parcels, for photograph attestation, and also as a study material in the classroom. This research is focused on the three important aspects; first is to characterize the marker inks, second, to discriminate permanent marker and whiteboard marker inks using destructive (extracting of ink samples from paper substrate) and nondestructive (without ink extraction) techniques of ultraviolet-visible absorbance combined with peak identification examination as well as chemometric methods, and the third is to build a classification model for permanent and whiteboard marker inks. It is concluded that the chemometric method, that is, principal component analysis provides better discrimination power as compared to visual examination. However, destructive and nondestructive approaches give almost similar discriminating power. The classification model developed using linear discriminant analysis provides 87.5% of correct classification of marker ink samples. The method can further be used to formulate a statistical model for the determination of class/group of the other forensic exhibits.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10406 - Analytical chemistry

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Spectroscopy Letters

ISSN

0038-7010

e-ISSN

—

Volume of the periodical

51

Issue of the periodical within the volume

5

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

205-215

UT code for WoS article

000434448500001

EID of the result in the Scopus database

2-s2.0-85048340102