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5213001 
Journal Article 
Identification of lipid binders in paintings by gas chromatography. Influence of the pigments 
Gimeno-Adelantado, JV; Mateo-Castro, R; Doménech-Carbó, MT; Bosch-Reig, F; Doménech-Carbó, A; Casas-Catalán, MJ; Osete-Cortina, L 
2001 
Yes 
Journal of Chromatography A
ISSN: 0021-9673
EISSN: 1873-3778 
922 
1-2 
385-390 
English 
11486888 
WOS:000169975100040 
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. 
oils; art analysis; lipids; pigments; fatty acids