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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%.
In other words, when applying this analysis procedure, the team can indicate whether the document was written 1,500 days previously (just over four years) with a margin of 300 days either way.
An ink dating method based on solvent analysis was recently developed using thermal desorption followed by gas chromatography/mass spectrometry (GC/MS) and is currently implemented in several forensic laboratories.
The main aims of this work were to implement this method in a new laboratory to evaluate whether results were comparable at three levels: (i) validation criteria, (ii) aging curves, and (iii) results interpretation.
When analysing the kinetics involved in its disappearance, the research group established a pattern that links the state of the ink with the time that has elapsed.
More accurate, less invasive After observing this natural evolution and once the base guideline had been established, the next challenge to be overcome was to check the viability of the method using spontaneously written documents whose exact age was known, such as diaries, laboratory logs and judicial evidence from judicial processes that had been closed.
There are four major approaches (each approach is a group of methods) used for dating inks on documents: 1.
Ink Aging Approach Various methods have been published to measure aging processes that occur in ink on documents. Aginsky is the author of two ink aging methods that analyze ink volatile components (not ink dye components*) and that have been tested and applied to actual cases by multiple forensic laboratories.
So Datink offers a more accurate, less damaging, less intrusive and less harmful result. The excavation work has demonstrated that the settlement, which is now home to the small Kurdish ...But this technique is also able to overcome other stumbling blocks relating to the amount of ink deposited when writing and the type of paper used, as these variables hamper the dating of a document by means of traditional methods.What is more, the new technique reduces the number of punctures needed to analyse the writing on a document to just one.Nevertheless, this methodology is a pilot experience that requires further in-depth research when it comes to evaluating the limits of the applicability of the various inks and makes of ballpoint pens, thus reducing its potential limitations. Historical research using forensic fingerprinting techniques on the wax seals of thousands of medieval documents will reveal new insights into 12th to 14th century British society, help determine how ...As Luis Bartolomé pointed out, "what is interesting about this method is that it can more accurately determine the age of the stroke produced by the ballpoint pen.