Badania użyteczności wysokosprawnej chromatografii cienkowarstwowej do analizy czerwonych past dŁugopisowych wykonywanej na potrzeby wymiaru sprawiedliwości i organów ścigania

Translated title of the contribution: Feasibility of high performance thin layer chromatography for the forensic analysis of red ballpoint pen inks

Loong Chuen Lee, Eng Leng Lee, Ab Aziz Ishak

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The counterfeiting of documents written with a ballpoint pen is a common phenomenon in the modem world. The aim of the presented study was to investigate the feasibility of applying high performance thin layer chromatography (HPTLC) to the forensic analysis of red ballpoint pen inks. Inks were extracted from writings on white office paper using methanol. The separation was performed using a solvent mixture of ethyl acetate, methanol and distilled water (70:35:30, v/v/v) as the mobile phase. The writing inks were first classified according to their main dye component. Differentiation was then attempted by taking other minor dyes into account. The results showed that the ink samples could be divided into three groups, even though similarities between the chromatograms were very high. The greatest diversity of chromatogram profiles was revealed for ink entries written using pens of different brands. The results showed that HPTLC could be an effective and reliable tool for characterizing and identifying red ballpoint pen inks.

Original languageUndefined/Unknown
Pages (from-to)14-22
Number of pages9
JournalZ Zagadnien Nauk Sadowych
Volume97
Publication statusPublished - 2014

Fingerprint

Ink
Thin Layer Chromatography
Methanol
Coloring Agents
Modems
Water

Keywords

  • Discrimination power
  • Forensic ink analysis
  • High performance thin layer chromatography
  • Questioned documents
  • Red ballpoint pen inks

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

Cite this

@article{f565990a8fae4ab287b33958ad075661,
title = "Badania użyteczności wysokosprawnej chromatografii cienkowarstwowej do analizy czerwonych past dŁugopisowych wykonywanej na potrzeby wymiaru sprawiedliwości i organ{\'o}w ścigania",
abstract = "The counterfeiting of documents written with a ballpoint pen is a common phenomenon in the modem world. The aim of the presented study was to investigate the feasibility of applying high performance thin layer chromatography (HPTLC) to the forensic analysis of red ballpoint pen inks. Inks were extracted from writings on white office paper using methanol. The separation was performed using a solvent mixture of ethyl acetate, methanol and distilled water (70:35:30, v/v/v) as the mobile phase. The writing inks were first classified according to their main dye component. Differentiation was then attempted by taking other minor dyes into account. The results showed that the ink samples could be divided into three groups, even though similarities between the chromatograms were very high. The greatest diversity of chromatogram profiles was revealed for ink entries written using pens of different brands. The results showed that HPTLC could be an effective and reliable tool for characterizing and identifying red ballpoint pen inks.",
keywords = "Discrimination power, Forensic ink analysis, High performance thin layer chromatography, Questioned documents, Red ballpoint pen inks",
author = "Lee, {Loong Chuen} and Lee, {Eng Leng} and Ishak, {Ab Aziz}",
year = "2014",
language = "Undefined/Unknown",
volume = "97",
pages = "14--22",
journal = "Z Zagadnien Nauk Sadowych",
issn = "1230-7483",
publisher = "Instytut Ekspertyz Sadowych",

}

TY - JOUR

T1 - Badania użyteczności wysokosprawnej chromatografii cienkowarstwowej do analizy czerwonych past dŁugopisowych wykonywanej na potrzeby wymiaru sprawiedliwości i organów ścigania

AU - Lee, Loong Chuen

AU - Lee, Eng Leng

AU - Ishak, Ab Aziz

PY - 2014

Y1 - 2014

N2 - The counterfeiting of documents written with a ballpoint pen is a common phenomenon in the modem world. The aim of the presented study was to investigate the feasibility of applying high performance thin layer chromatography (HPTLC) to the forensic analysis of red ballpoint pen inks. Inks were extracted from writings on white office paper using methanol. The separation was performed using a solvent mixture of ethyl acetate, methanol and distilled water (70:35:30, v/v/v) as the mobile phase. The writing inks were first classified according to their main dye component. Differentiation was then attempted by taking other minor dyes into account. The results showed that the ink samples could be divided into three groups, even though similarities between the chromatograms were very high. The greatest diversity of chromatogram profiles was revealed for ink entries written using pens of different brands. The results showed that HPTLC could be an effective and reliable tool for characterizing and identifying red ballpoint pen inks.

AB - The counterfeiting of documents written with a ballpoint pen is a common phenomenon in the modem world. The aim of the presented study was to investigate the feasibility of applying high performance thin layer chromatography (HPTLC) to the forensic analysis of red ballpoint pen inks. Inks were extracted from writings on white office paper using methanol. The separation was performed using a solvent mixture of ethyl acetate, methanol and distilled water (70:35:30, v/v/v) as the mobile phase. The writing inks were first classified according to their main dye component. Differentiation was then attempted by taking other minor dyes into account. The results showed that the ink samples could be divided into three groups, even though similarities between the chromatograms were very high. The greatest diversity of chromatogram profiles was revealed for ink entries written using pens of different brands. The results showed that HPTLC could be an effective and reliable tool for characterizing and identifying red ballpoint pen inks.

KW - Discrimination power

KW - Forensic ink analysis

KW - High performance thin layer chromatography

KW - Questioned documents

KW - Red ballpoint pen inks

UR - http://www.scopus.com/inward/record.url?scp=84903827859&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84903827859&partnerID=8YFLogxK

M3 - Article

VL - 97

SP - 14

EP - 22

JO - Z Zagadnien Nauk Sadowych

JF - Z Zagadnien Nauk Sadowych

SN - 1230-7483

ER -