Ion attachment mass spectrometry (IAMS) is combined with an in-house single-atom infrared image furnace (IIF) for thermal analysis studies. Besides the detection of many chemical species at atmospheric pressure, including free radical intermediates, the ion attachment mass spectrometer can also be used for the analysis of products emanating from temperature-programmed pyrolysis.
COBISS.SI-ID: 30312965
We successfully transferred and applied -omics concepts to the study of material degradation, in particular historic paper. The main volatile degradation products of paper, constituting the particular “smell of old books”, were determined using headspace analysis after a 24 h predegradation procedure. Using methods of multivariate data analysis, we were able to quantitatively correlate volatile degradation products with properties important for the preservation of historic paper.
COBISS.SI-ID: 33296901
In the article density functional theory was used to calculate the proton affinity and determine the global minimum energy structures of of fullerene (C60) and its protonated forms. The proton affinity for fullerene was calculated as 201.8 kcal/mol, compared with the experimental value between 204 and 207 kcal/mol obtained by proton-transfer bracketing studies using Fourier transform mass spectrometry. All five transition states for intramolecular proton transfer in fullerene were found, three for the first time.
COBISS.SI-ID: 4103450
Historic parchment is a macromolecular material, which is complex due to its natural origin, inhomogeneity of the skin structure, unknown environmental history and potential localised degradation. By gas-chromatographic analysis of the atmosphere surrounding parchment during oxidation, we provide the experimental evidence on the production of volatile aldehydes, which can be the products of lipid peroxidation and can leads to oxidative degradation of collagen.
COBISS.SI-ID: 30426117
The mechanism of corrosion of copper was investigated in a wide potential window and in a broad range of concentrations of various species (0.2–3.5 mol/L NH3, 0–0.1 mol/L Cu2+, pH 10–12.5). Using conventional electrochemical methods in combination with an optical SEM method, we show that a two-step EC reaction yielding Cu2O proceeds. Finally, we confirm proposed mechanism by performing impedance analysis at various experimental conditions.
COBISS.SI-ID: 4152858