Karakterizacija veziv z infrardečo spektroskopijo in plinsko kromatografijo sklopljeno z masno spektrometrijo

Kranjc, Domen (author), Kralj Cigić, Irena (mentor)

Analiza materialov predmetov kulturne dediščine predstavlja prvi korak pri načrtovanju kakršnega koli konservatorskega-restavratorskega posega. V okviru magistrskega dela sem v realnih vzorcih odvzetih z umetniških slik iz 20. stoletja z uporabo infrardeče spektroskopije in plinske kromatografije sklopljene z masno spektrometrijo identificiral uporabljena veziva. Najprej sem si z izbiro ustreznih modelnih vzorcev pripravil knjižnico IR spektrov, MS spektrov in kromatogramov, s pomočjo katerih sem nato interpretiral rezultate analiz realnih vzorcev odvzetih iz umetniških slik. Poleg identifikacije veziv v realnih vzorcih sem s pomočjo infrardeče spektroskopije identificiral tudi nekatere anorganske primesi (pigmente in polnila). Na modelnih vzorcih damar smole, čebeljega voska in njunih mešanic sem z infrardečo spektroskopijo preučeval tudi vpliv povišane temperature za različna časovna obdobja.

• Language: Slovenian
• Keywords: dediščinska znanost, analiza veziv, infrardeča spektroskopija, plinska kromatografija, masna spektrometrija
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FKKT - Faculty of Chemistry and Chemical Technology
• Year: 2020
• PID: 20.500.12556/RUL-121787
• COBISS.SI-ID: 38794755
• Publication date in RUL: 29.10.2020

Secondary language

• Language: English
• Title: Characterization of binders with infrared spectroscopy and gas chromatography coupled to mass spectrometry

Abstract

Analysis of the materials of cultural heritage objects is the first step toward any kind of a conservation-restoration procedure. In this work I have characterized binder materials in samples taken from 20th century paintings using infrared spectroscopy and gas chromatography coupled with a mass spectrometry. With appropriate selection of model samples the library of infrared spectra, MS spectra and chromatograms was prepared for further interpretation of the results of the real samples from paintings. Together with the identification of the binder materials in the samples also some inorganic compounds (pigments and fillers) were identified using infrared spectroscopy. I have also employed infrared spectroscopy to study the effects of increased temperature on model samples of dammar resin, beeswax and their mixtures.

• Keywords: heritage science, binder analysis, infrared spectroscopy, gas chromatography, mass spectrometry