Detailed Information on Publication Record
2016
The efficiency of micro-Raman spectroscopy in the analysis of complicated mixtures in modern paints: Munch's and Kupka's paintings under study
KOŠAŘOVÁ, Veronika, David HRADIL, Janka HRADILOVÁ, Zdeňka ČERMÁKOVÁ, Ivan NĚMEC et. al.Basic information
Original name
The efficiency of micro-Raman spectroscopy in the analysis of complicated mixtures in modern paints: Munch's and Kupka's paintings under study
Authors
KOŠAŘOVÁ, Veronika (203 Czech Republic, guarantor, belonging to the institution), David HRADIL (203 Czech Republic), Janka HRADILOVÁ (203 Czech Republic), Zdeňka ČERMÁKOVÁ (203 Czech Republic), Ivan NĚMEC (203 Czech Republic) and Manfred SCHREINER (40 Austria)
Edition
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Elsevier Science, 2016, 1386-1425
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10406 Analytical chemistry
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 2.536
RIV identification code
RIV/00216224:14310/16:00089241
Organization unit
Faculty of Science
UT WoS
000369201200006
Keywords in English
Micro-Raman spectroscopy; Portable Raman spectrometry; Modern paints
Tags
International impact, Reviewed
Změněno: 14/4/2017 14:18, Ing. Andrea Mikešková
Abstract
V originále
Twenty one mock-up samples containing inorganic pigments primarily used at the turn of the 19th and 20th century were selected for comparative study and measured by micro-Raman and portable Raman spectrometers. They included pure grounds (chalk-based, earth-based and lithopone-based), grounds covered by resin-based varnish, and different paint layers containing mixtures of white, yellow, orange, red, green, blue and black pigments, usually in combination with white pigments (titanium, zinc and barium whites or chalk). In addition, ten micro-samples obtained from seven paintings of two world-famous modern painters Edvard Munch and František Kupka have been investigated. Infrared reflection spectroscopy (FTIR), portable X-ray fluorescence (XRF) and scanning electron microscopy with energy dispersive spectroscopy (SEM–EDS) were used as supplementary methods. The measurements showed that blue pigments (ultramarine, Prussian blue and azurite), vermilion and ivory black in mixture with whites provided characteristic Raman spectra, while Co-, Cd- and Cr- pigments' bands were suppressed by fluorescence. The best success rate of micro-Raman spectroscopy has been achieved using the 780 nm excitation, however, the sensitivity of this excitation laser in a portable Raman instrument significantly decreased. The analyses of micro-samples of paintings by E. Munch and F. Kupka showed that micro-Raman spectroscopy identified pigments which would remain unidentified if analyzed only by SEM–EDS (zinc yellow, Prussian blue). On the other hand, chromium oxide green and ultramarine were not detected together in a sample due to overlap of their main bands. In those cases, it is always necessary to complement Raman analysis with other analytical methods.