Object's details: Influence of Raman spectra measurement conditions on the dating results of writing compositions

Description

• PLMET:
  
  http://confluence.man.poznan.pl/community/display/FBCMETGUIDE
• Title:
  
  
  Influence of Raman spectra measurement conditions on the dating results of writing compositions
• Group publication title:
  
  
  Nowa Kodyfikacja Prawa Karnego, t. 60, 2021
• Creator:
  
  
  Ershova, Ksenia
   ;
  Kochemirovskaya, Svetlana
   ;
  Kirillova, Natalia P.
   ;
  Kochemirovsky, Vladimir
   ;
  Ryazantsev, Mikhail
  
• Subject and Keywords:
  
  
  dating documents
   ;
  questioned document examination
   ;
  Raman spectroscopy
   ;
  chemometric analysis
   ;
  PCA
• Abstract:
  
  
  When establishing the age of a document using spectral methods, the result is influenced not only by the storage conditions, but also by the methods of measuring the spectra and mathematical processing of the results. This work analyzes the influence the modes of measuring Raman spectra have on the result of measuring the writing composition spectra.The analysis area includes the correlation coefficients of the full spectral matrices as a criterion for the reliability of the determination date. The influence of focusing accuracy, correctness of subtraction of the baseline, sample irradiation time, and varying the number of repetitions is investigated. In the study, chemometric tools for the analysis of Raman spectra were also applied. The influence of mathematical spectra processing shows that the components PC4, P5, and PC6 are most closely related to the shelf life, although they do not make the maximum contribution to the variance in the system. Taking into account all the requirements for measuring spectra, the PCA method applied to the Raman spectra of writing compositions allows clustering samples by manufacturer’s brands and by the sample shelf life.
• Place of publishing:
  
  
  Wrocław
• Publisher:
  
  
  Wydawnictwo Uniwersytetu Wrocławskiego
• Contributor:
  
  
  Kalisz, Tomasz
  :
  Redaktor,
   ;
  Cieśla, Rafał
  :
  Redaktor,
• Date issued:
  
  2021
• Resource Type:
  
  
  text
   ;
  
  
  tekst
• Detailed Type:
  
  
  article
   ;
  
  
  artykuł
• Identifier:
  
  oai:repozytorium.uni.wroc.pl:136387  ; https://doi.org/10.19195/2084-5065.60.5  ;
  ISSN 2084-5065
   ;
  ISSN 0239-6661
• Language:
  
  eng
• Abstract Language :
  
  eng
• Relation:
  
  
  Acta Universitatis Wratislaviensis, ISSN 0239-666; No 4039
• WUL Catalog:
  
  
  https://katalog.bu.uni.wroc.pl/lib/item?id=chamo:229883
• Is version of:
  
  Czasopisma Naukowe w Sieci (CNS)
• Access rights:
  
  
  The use of this material is allowed only with accordance of applicable rules of fair use or other exceptions provided by law, and any broader use requires the permission of the authorized entity
   ;
  
  
  Korzystanie z tego materiału jest możliwe zgodnie z właściwymi przepisami o dozwolonym użytku lub innych wyjątkach przewidzianych w przepisach prawa, a korzystanie w szerszym zakresie wymaga uzyskania zgody uprawnionego
• License:
  
  
  Making materials available on the basis of the agreement with the owner of the property copyrights
   ;
  
  
  Udostępnianie na podstawie umowy z właścicielem majątkowych praw autorskich
• Rights holder:
  
  Copyright by Wydawnictwo Uniwersytetu Wrocławskiego Sp. z o.o., Wrocław 2021
   ;
  Copyright by CNS
• Autor opisu:
  
  WR U/PAdks

Object is located in the collections:

Additional information

• Creation date: 2023-02-03
• Last modification date: 2024-08-27
• Content object's number of views: 53
• You could also download the object's description in these formats:
  RDF
   ;
  OAI-PMH
• Download IIIF manifest:
  https://repozytorium.uni.wroc.pl/iiif-manifest/manifest/136387/PDF.json