Document Detail


Mass spectrometric techniques for characterizing low-molecular-weight resins used as paint varnishes.
MedLine Citation:
PMID:  23151653     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The molecular structure of three low-molecular-weight resins used as paint varnishes has been characterized by use of an approach based on three different mass spectrometric techniques. We investigated the ketone resin MS2A, the aldehyde resin Laropal A81, and the hydrocarbon resin Regalrez 1094, now commonly used in restoration. To date, the molecular structures of these resins have not been completely elucidated. To improve current knowledge of the chemical composition of these materials, information obtained by gas chromatography-mass spectrometry (GC/MS), pyrolysis-gas chromatography-mass spectrometry (Py/GC/MS), and electrospray ionization mass spectrometry (ESI-Q-ToF) was combined. Analysis, in solution, of the whole polymeric fraction of the resins by flow-injection ESI-Q-ToF, and of the non-polymeric fraction by GC-MS, enabled us to identify previously unreported features of the polymer structures. In addition, the Py-GC/MS profiles that we obtained will help to enhance the databases currently available in the literature. The proposed approach can be extended to other low-molecular-weight resins used as varnishes in conservation.
Authors:
I Bonaduce; M P Colombini; I Degano; F Di Girolamo; J La Nasa; F Modugno; S Orsini
Related Documents :
25172683 - Preliminary enrichment and separation of chlorogenic acid from helianthus tuberosus l. ...
1800523 - Hydrophobicity of beta-lactam antibiotics. explanation and prediction of their behaviou...
1918243 - Comparative study on the determination of the anti-neoplastic drug teniposide in plasma...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-14
Journal Detail:
Title:  Analytical and bioanalytical chemistry     Volume:  -     ISSN:  1618-2650     ISO Abbreviation:  Anal Bioanal Chem     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101134327     Medline TA:  Anal Bioanal Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Chemistry and Industrial Chemistry, University of Pisa, via Risorgimento 35, 56126, Pisa, Italy.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  In search of the sixth vital sign: cancer care in Romania.
Next Document:  The effect of optical substrates on micro-FTIR analysis of single mammalian cells.