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Ink dating aginsky

Aginsky Forensic Document Dating - Aginsky Forensic Document Dating Laboratory is an international forensic firm that provides consultation, examination and expert testimony on civil and criminal cases involving disputed documents.

Only a handful of US private kempton park online dating labs do such work.

The epeps of the individually run dyes and the peaks from the mixture allowed the assignment of each peak to its corresponding dye.

Problems with this approach are the limited sampling taken from the general ink population and the high probability that many formulations are too similar to be differentiated unless specific information is known prior to analysis. Some of these procedures are nondestructive (Harris 1991; Trzcinska 1993; Varlaskin and Low 1986 whereas others are more destructive than thin-layer chromatography extractions because they require that more samples be physically removed from the document (Merrill and Bartick 1992; Trzcinska 1990). Printer inks and dyes used in the textile and currency industries are also possible analytes for the methods developed in this report.

David Ellen, Scientific Examination of Documents: Methods and Techniques (3rd., CRC Press 2005).

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.

Comparison of the Figure 3: Six-dye standard mixture of cationic, basic dye compounds separated on the Beckman P/ACE MDQ system and labeled with peak migration times (minutes).