Abstract
ABSTRACT A survey of graphite drawings by the English painter John Constable revealed that in many cases the artist applied a coating overtop of the media. This thin, clear, glossy coating was characterized on over thirty drawings where it appeared to be the same material although employed in different ways. Several attempts were made to identify the material with minimal success until peptide mass fingerprinting (PMF) was used, and a minimally invasive sampling method involving vinyl eraser cubes proved to be a very easy and effective technique to collect sufficient sample material for the analysis. The results of testing samples from seven drawings conclusively identified the coating as isinglass, which Constable was using in other preparations of support materials for painting. As part of this work, putative markers for the identification of isinglass by PMF were developed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
