A Comparative Study on Pen Inks: A Review

A Comparative Study on Pen Inks: A Review

Author Name : Rishabh Gupta, Mamta Pal

ABSTRACT Analysis of different inks is a supportive evidence in forensics as the lithographic paper or other substrate surfaces with ink remains commonly used and reliable for any corporate and legal. Forgery of a questioned document is a common crime and of great importance in forensic science. Objectives are a collection of different pen and printing ink and different grade of documents for analysis, analysis of the inks; documents collected by thin-layer chromatography, optimization of the solvent system for precise and accurate analysis of the type of pigment present in the inks and to study and identify the solvents used for manufacturing different pen inks by gas chromatography using headspace extraction technique and Thin layer chromatography. This review article aims to show the forensic importance of Thin-layer chromatography and gas chromatography in the analysis of inks of all sorts of pen.