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Analysis of organic additives in historical mortars
Křížová, Iva ; Čabala, Radomír (advisor) ; Hynek, Radovan (referee)
- 4 - Abstrakt The aim of this diploma thesis was to determine the possibility of identifying the protein and lipid additives, such as blood, gelatine, curd, lard and eggs, in the model samples of lime based mortars using Raman spectroscopy and gas chromatography- mass spectrometry. It was proved that the method of Raman spectroscopy can determine the presence of organic additives in the order of one weight percent. The gas chromatography enables to detect lipid additives from the order of hundredths weight percent. Unambiguous resolution of protein additives can be done in the samples with the concentrations up to the order of one weight percent of the additives.
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Analysis of organic additives in historical mortars
Křížová, Iva ; Čabala, Radomír (advisor) ; Hynek, Radovan (referee)
- 4 - Abstrakt The aim of this diploma thesis was to determine the possibility of identifying the protein and lipid additives, such as blood, gelatine, curd, lard and eggs, in the model samples of lime based mortars using Raman spectroscopy and gas chromatography- mass spectrometry. It was proved that the method of Raman spectroscopy can determine the presence of organic additives in the order of one weight percent. The gas chromatography enables to detect lipid additives from the order of hundredths weight percent. Unambiguous resolution of protein additives can be done in the samples with the concentrations up to the order of one weight percent of the additives.
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Application of vibrational spectroscopy to analysis of artwork - mortars
Křížová, Iva ; Němec, Ivan (advisor) ; Hynek, Radovan (referee)
The aim of this work was to determine the possibility of identifying the protein and lipid additives, such as blood, gelatin, curd, lard or eggs, in the model samples of lime based mortars using infrared spectroscopy. We have focused on the reflectance techniques of infrared spectroscopy, and we proved that by these methods can be determined the presence of additives, down to tenths percent by weight. Detailed resolution of lipid and protein additives can be achieved only for samples containing at least one weight percent of additive. There were not observed any spectral changes which can be correlated with performed curing and aging of prepared model samples.
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