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.Základní údaje
Originální název
The efficiency of micro-Raman spectroscopy in the analysis of complicated mixtures in modern paints: Munch's and Kupka's paintings under study
Autoři
KOŠAŘOVÁ, Veronika (203 Česká republika, garant, domácí), David HRADIL (203 Česká republika), Janka HRADILOVÁ (203 Česká republika), Zdeňka ČERMÁKOVÁ (203 Česká republika), Ivan NĚMEC (203 Česká republika) a Manfred SCHREINER (40 Rakousko)
Vydání
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Elsevier Science, 2016, 1386-1425
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10406 Analytical chemistry
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.536
Kód RIV
RIV/00216224:14310/16:00089241
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000369201200006
Klíčová slova anglicky
Micro-Raman spectroscopy; Portable Raman spectrometry; Modern paints
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 14. 4. 2017 14:18, Ing. Andrea Mikešková
Anotace
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.