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4th Edition of

Chemistry World Conference

June 17-19, 2024 | Paris, France

Chemistry 2021

Kseniia O Ershova

Speaker at Chemistry World Conference 2021 - Kseniia O Ershova
Nanotechnology Research and Education Centre of the Russian Academy of Sciences, Russian Federation
Title : Influence of atmospheric humidity on the results of determining the age of handwritten inscriptions on questioned documents


Forensic technical examination of documents is in demand to combat the falsification of a document by participants in judicial disputes. Determining the actual date when a certain inscription appeared on a piece of paper is one of the most important and difficult forensic tasks. Written compositions are complex multicomponent mixtures, including dyes, solvents and resins, preservatives, and antioxidants i.e. complex organic mixtures that undergo changes over time. This is due to numerous technical and legal problems that require description, systematization, and solution.

Room temperature is believed to be a major factor in aging. However, a much stronger factor of natural influence, in the authors’ opinion, should be the atmospheric humidity. In some cases, the amount of 2-phenoxyethanol begins to increase over time according to chromatography-mass spectrometry. This can be explained by the influence of humidity


Dr. Kseniia Ershova (nee Gorshkova) studied Chemistry at the Institute of Chemistry, Saint-Petersburg University 2014. She received her PhD degree in 2018 at the same institution. Since 2020 work in Nanotechnology Research and Education Centre of the Russian Academy of Sciences, Saint Petersburg Academic University. She has published 6 research articles in SCI(E) journals.