41791
Title Of Article Chaper
Identification of pigments and media from a paint cross-section by direct mass spectrometry and high-resolution imaging mass spectrometric and microspectroscopic techniques
Title Of Journal Book
ICOM Committee for Conservation, ICOM-CC : 13th Triennial Meeting, Rio de Janeiro, 22-27 September 2002 : preprints
Volume
1
Pages
223-230
Collation
8 p. : ills.
Reference Bibliography
Includes bibliographic references
Publisher
ICOM-CC; James & James
Publisher City
London
ISBN
1-902916-30-1
Language Of Text
English
Literature Type
Monograph
Literature Level
Analytic
Abstract
Comparative studies of direct mass spectrometry and various imaging mass spectrometric and microspectroscopic techniques are being developed for mapping of the chemical composition of pigments and media in paint cross-section. A study of a multi-layered embedded paint cross-section obtained from a painting by P. Caulfield (Interior with a Picture) demonstrates the analytical approach. Imaging SIMS showed the p(EA/MMA) medium distribution in the cross-section. Spot selective laser desorption MS identified the synthetic organic pigments PR170 and PY3. Imaging SEM-EDX provided high-resolution distribution maps of O, S, Cl, Si, Ca, Cd, Zn, Mn, Ti, Ba and Fe which allowed the assignment of inorganic pigments. Maps of iron and cadmium obtained by SIMS matched well with the EDX maps. Reflection microspectroscopy of the coloured layers in the cross-section confirmed several of the pigment identifications. -- SCMRE
Keywords
caulfield; organic; pigment; microspectroscopy; cross-section; acrylic; emulsion; mass; spectrometry; imaging; sem; edx; sem-edx; imaging; sims -- SCMRE
pub_id
41791