6533b7d1fe1ef96bd125c0f9
RESEARCH PRODUCT
Identification of lipid binders in paintings by gas chromatography
Francisco Bosch-reigM.j Casas-catalánLaura Osete-cortinaAntonio Doménech-carbóJosé Vicente Gimeno-adelantadoR. Mateo-castroMaría-teresa Doménech-carbósubject
Chromatographyfood.ingredientSunflower oilOrganic ChemistryDrying oilGeneral MedicineBiochemistryCobalt blueAnalytical Chemistrylaw.inventionPalmitic acidchemistry.chemical_compoundOleic acidfoodchemistryLinseed oillawFlame ionization detectorGas chromatographydescription
Abstract The influence of the presence and the type of pigments in the lipid binding media of paintings were studied by gas chromatography with flame ionization detector. The drying oils were linseed stand oil, poppy oil and sunflower oil, and the pigments studied were cadmium red, cobalt blue, tin white, lead white, chalk and plaster of Paris, commonly used in paintings. The results indicate that the stearic/palmitic ratio and the presence of pigments are quite stable during ageing. However, some differences in the oleic acid/palmitic acid ratio were found, depending on the type of pigment present in the lipid binding media. These variations are related to the drying effect of the pigments. The proposed method has been applied to the identification of drying oils in two samples from baroque paintings in the “Basilica de la Virgen de los Desamparados” of Valencia, Spain.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-07-01 | Journal of Chromatography A |