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Specifically, they focussed on the solvent known as 2-phenoxyethanol (PE), present in 80% of the inks in ballpoint pens of this type.
Itxaso San Román, Luis Bartolomé and Rosa María Alonso allowed the chemical compound to age under normal conditions, without ageing it artificially, which is what happens in other methods, and studied its evaporation speed.
He has been an instructor at the FBI Academy, Federal Law Enforcement Training Center, Naval Investigative Service, Air Office of Special Investigation, U.
IPS Testing is able to determine likely age ranges for paper products by using wood fibers, pulping chemistry, paper additives and surface treatments to serve as dating markers.
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.
This company also supplied the knowledge about the current problems in dating documents, real cases that had been subjected to legal examination.
The chemical analysis of writing and printing inks, as well as paper, can be invaluable when trying to prove whether a document is fraudulent.
Ink dating is a highly specialized forensic examination and considered to be one of the most accurate and reliable methods to help determine the age of a document. has extensive experience as a forensic chemist and document dating specialist.
In fact, the dating of documents is a key area in the field of forensic science. These are often very tricky questions to answer and frequently arise in judicial contexts.