Aginsky v n some new ideas for dating ballpoint inks
More recently, investigations have focused on the solvent loss ratio of PE prior to and after heating.
To determine how often PE occurs in ink formulations, the authors analyzed 633 ballpoint inks utilizing a gas chromatograph/mass spectrometer.
This new approach can determine the relative age of the ink, in a nondestructive manner, from any two writings created at different periods of time with the same class of ink.
One of the challenges faced by the forensic document examiner is determining the age of a document/ink in order to ascertain whether entries or writings – such as those in logbooks, registers, OMR sheets, deeds, cheques, drafts, and other important documents – were executed in the same period or in different periods of time.
2-Phenoxyethanol was identified in 85% (237/279) and 83% (293/354) of black and blue inks, respectively.
New perspectives in the use of ink evidence in forensic science: Part I. Speckin // Association of Forensic Document Examiners 187. Review of ink dating methods: Is it possible to determine the age of a document through ink analysis? Humecki // Proceedings of the International Symposium on Questioned Documents, FBI Academy, Quantico, VA, 1985. SERRS Spectroscopy a new technique for forensic science?