Identification of non-cross-linked compounds in methanolic extracts of cured and aged linseed oil-based paint films using gas chromatography–mass spectrometry

Berg, Jorrit D.J. van den; Berg, Klaas Jan van den; Boon, Jaap J.

doi:10.1016/s0021-9673(02)00049-3

Cited by 67 publications

(54 citation statements)

References 38 publications

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“…Analysis of 5-year old stand oil film identified short chain fatty acids (C 7 -C 10 ), diacids (C 7 -C 11 ), saturated long chain fatty acids (C 16 -C 18 , C 20 -C 22 ), a cyclic C 18 fatty acid and some unsaturated and/or oxidised C 18 fatty acids, in the extracts. In addition, the analysis detected monounsaturated C 18 fatty acids, but no doubly and triply unsaturated fatty acids, although all acids had been initially present in high concentrations in the oil (van den Berg et al 2002).…”

Section: Chromatographic and Mass Spectrometric Techniquesmentioning

confidence: 96%

Low temperature oxidation of linseed oil: a review

et al. 2012

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This review analyses and summarises the previous investigations on the oxidation of linseed oil and the self-heating of cotton and other materials impregnated with the oil. It discusses the composition and chemical structure of linseed oil, including its drying properties. The review describes several experimental methods used to test the propensity of the oil to induce spontaneous heating and ignition of lignocellulosic materials soaked with the oil. It covers the thermal ignition of the lignocellulosic substrates impregnated with the oil and it critically evaluates the analytical methods applied to investigate the oxidation reactions of linseed oil. Initiation of radical chains by singlet oxygen ( 1 Δ g ), and their propagation underpin the mechanism of oxidation of linseed oil, leading to the self-heating and formation of volatile organic species and higher molecular weight compounds. The review also discusses the role of metal complexes of cobalt, iron and manganese in catalysing the oxidative drying of linseed oil, summarising some kinetic parameters such as the rate constants of the peroxidation reactions. With respect to fire safety, the classical theory of self-ignition does not account for radical and catalytic reactions and appears to offer limited insights into the autoignition of lignocellulosic materials soaked with linseed oil. New theoretical and numerical treatments of oxidation of such materials need to be developed. The self-ignition induced by linseed oil is predicated on the presence of both a metal catalyst and a lignocellulosic substrate, and the absence of any prior thermal treatment of the oil, which destroys both peroxy radicals and singlet O 2 sensitisers. An overview of peroxyl chemistry included in the article will be useful to those working in areas of fire science, paint drying, indoor air quality, biofuels and lipid oxidation.

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Section: Chromatographic and Mass Spectrometric Techniquesmentioning

confidence: 96%

Low temperature oxidation of linseed oil: a review

et al. 2012

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“…Spectra not included in above mentioned library were compared with mass spectra available in literature. [7][8][9][10] Sample preparation for GC-MS analyses.…”

Section: Apparatus: Gas Chromatography-mass Spectrometry (Gc-ms)mentioning

confidence: 99%

GC‐MS Characterisation and Identification of Natural Terpenic Resins Employed in Works of Art

et al. 2004

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Natural resins were frequently employed in the past as adhesives or as components of oleo-resinous media in paintings. The identification of vegetable resins is still an open problem. The aim of this paper is to analyse by GC-MS some vegetable resins frequently employed in paintings, such as Venice turpentine, dammar, copal, elemi, in order to identify their main components in samples both raw and aged. Some molecules are proposed as chemical markers to identify these natural resins. Two samples scraped off from XV and XVII century paintings were used to test the reliability of proposed method.

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“…In order to accurately characterize such complex materials, if considering the small quality of available samples from historical artworks (microgram degree), the low content of bindings in samples (usually less than 10 wt.%) and the presence of pigments, it is strongly required the powerful analytical techniques and methodologies with high sensitive and available in very low amount of samples. In this respect, gas chromatography/mass spectrometry (GC/MS) [7][8][9][10] in combination with various off-line [7,11,12] or on-line [13] derivatization procedures, high-performance liquid chromatography (HPLC) [14,15] and capillary electrophoresis (CE) [16] have been effectively employed in identifying drying-oil. But these techniques are commonly accompanied with very complicated preliminary scission of polymeric chain by hydrolysis in obtaining characteristic marked components [17].…”

Section: Introductionmentioning

confidence: 99%

“…As a matter of fact, it has proved that Py-GC/MS technique is typical valuable in the identification of drying-oil [13,26,29,30]. However, since the presence of polar hydroxyl group might give rise to excessive interactions in the peak broadening and the loss of resolution, it is necessary to derivatize the hydroxyl groups in order to improve its volatility during analysis.…”

Section: Introductionmentioning

confidence: 99%