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Naturally aged ink samples on paper were stored under various conditions, and the comparative samples were exposed to aggressive influence of light, temperature and ozone.During the study of artificially and naturally aged samples differences in chemical composition of ink were identified-possible signs of accelerated ageing were detected in records and signatures that were made with blue and purple ballpoint pen inks.Received date: May 31, 2016; Accepted date: September 07, 2016; Published date: September 12, 2016 Citation: Freidenfelds V, Certova J, Mekss P (2016) The Determination of Signs of Accelerated Ageing of Records made with Ballpoint Pen Inks by Using Chromatography Methods. doi: 10.4172/2157-7145.1000337 Copyright: © 2016 Freidenfelds V, et al.This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Two year old samples of other ballpoint pens were not available for the research.Description of the Process of Ageing Thermal degradation in an oven WDB Binder FD-53: • Sample was gradually heated at 100°C for 5 days, an average of 8 h per day, • Sample was heated at 160°C for 3 h, • Sample was heated at 200°C for 5 min and 40 min.Using each of the four pens, three sheets with samples were prepared and kept in the selected conditions: • In a laboratory with sunlight access, • In a laboratory without sunlight access, • Near an electro photographic device (Laser printer Kyocera KM-1635 KX).

Also, without additional research and evaluation, stability and the ability of various dyes to degrade into other dyes undermines the objectivity of the results obtained only by studying the profile of dyes.Extraction was made with SPME 75/85 μm CAR/PDMS sorbent, 10 min in 1.5 m L chromatography vial in 200°C.HPLC/MS: Waters Alliance 2695 with Waters Quatro Micro TM API and Mass Lynx (Gas N C18, 5 μm, 4.6 × 150 mm. Extraction made in 200 μL solution of mobile phase in ratio 1:1. Mobile phase: A-0.01% formic acid (p H 3), Bacetonitrile; Gradient: 20% B (t) which impact on the ageing processes was not examined in this study.Ballpoint ink; 2-phenoxyethanol; Ink ageing; Artificial ageing; HPLC-MS; GC-MS; SPME; Forensic science; Questioned documents Characteristics of composition of ballpoint pen ink on paper are of great importance in determining the age and in a comparative study of documents in the forensic examination of documents and materials.The ink is characterized by using profiles of dyes and the research shows that the majority of inks have similar profiles.




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