M. Járó - L. Költő szerk.: Archaeometrical research in Hungary (Budapest, 1988)

Analysis - WITTMANN Zsuzsa, BÉLAFI-RÉTI Katalin, DÉCSY Zoltán, ERDŐHALMI-TÖRÖK Klára, KISS—BENDEFY Márta, VASSÁNYI István, VELLEDITS Lajos: Examination of painting materials used by Mihály Munkácsy for his painting "Studio"

The amount of beeswax in the samples-was 30-50% (w/w). There are several unidentified molecular ions in the mass spectrum of the sample-part solved in chloroform (Fig. 4). 4? Fig. 5/a Nuclear magnetic resonance spectrum of beeswax (CI1ÇU) 18 tins, min Fig. 6. Gas chromatogram of the sample-part dissolved in chloroform (from sample 2) The mass spectra of the different natural waxes were compared with the mass spectrum of the sample-part (Fig. 4), and the spectrum of beeswax (Fig. 4/a) was similar to that. The peak of the methylene group beside hydroxyl is hardly seen in the nuclear magnetic resonance spectrum of the beeswax (Fig. 5/a), but the peak of the unsaturated hydrocarbons can be found on it. The relatively great alcohol content of the sample was probably caused by decomposition of the esters during the decades. In the course of time the unsaturated hydrocarbons were oxidized therefore their peak could not be seen in Fig. 5.