J 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

Štítky

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.