Forensics age dating ink
We use the most widely accepted chemical analysis technique known as gas chromatography/mass spectrometry (GC/MS) to help determine if a written entry was created in the past two years.
So the team used the same procedure as that used to analyse the samples produced for the research. This technique managed to spot the age of the ink on documents written up to five years previously and with an approximation margin of about 20%.So Datink has overcome some of the drawbacks graphology examination comes up against when ascertaining the age of a document by means of other methods.In these cases, significant dating errors occur because the type of paper used and the mass/quantity of the ink deposited influence the analysis.Or else it is a very useful tool to date contracts, settlements, wills or other documents. Its use could have for example helped to determine the moment when the papers in the Bárcenas [corruption claims] case were written." To conduct the research work, the Department of Analytical Chemistry had the collaboration of the company Investigaciones Forenses Documentales LEYAS and Magdalena Ezcurra holder of a Ph D from the UPV/EHU.