Experimental Research on Class Identification with a New Type of Erasable Gel Pens

© 2019 American Academy of Forensic Sciences..

A new type of erasable gel pen ink is becoming increasingly popular because of the modifiable characteristics for writing on documents. This study attempts to distinguish 12 types of blue and black erasable gel pens produced by mainstream stationery manufacturers using infrared (IR) visual analysis, Fourier transform infrared (FTIR) analysis, fluorescence analysis, and microspectrophotometry. The results demonstrate that IR visual, FTIR, and fluorescence analysis can be used to help distinguish each type of erasable gel ink. While microspectrophotometry can be used to effectively differentiate the blue gel inks in this study, there are limitations with respect to distinguishing black erasable gel pens. When these four optical analyses methods were used in combination, the gel inks could be accurately distinguished.

Medienart:

E-Artikel

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Zur Gesamtaufnahme - volume:64

Enthalten in:

Journal of forensic sciences - 64(2019), 6 vom: 01. Nov., Seite 1889-1897

Sprache:

Englisch

Beteiligte Personen:

Liu, Xinlai [VerfasserIn]
Li, Zhen [VerfasserIn]

Links:

Volltext

Themen:

Erasable gel pens
FTIR
Forensic document examination
Forensic science
Gel inks
Infrared
Journal Article
Microspectrophotometry
Questioned documents
Writing inks

Anmerkungen:

Date Completed 05.11.2019

Date Revised 08.01.2020

published: Print-Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.1111/1556-4029.14072

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM297260308