Document Detail


Mass spectrometry of polycyclic tetracarboxylic ('ARN') acids and tetramethyl esters.
MedLine Citation:
PMID:  20941768     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Polycyclic C(80) tetracarboxylic (so-called 'ARN') acids are found as calcium salts in deposits which form in certain oilfield pipelines and equipment. Characterisation of these acids is important for improving the prediction and hence avoidance or minimisation of oilfield deposition problems. Although several of the acids have been isolated and characterised (as regioisomeric mixtures) by nuclear magnetic resonance spectroscopy, mass spectrometric methods are likely to be much more useful for the routine analysis of oils and deposits containing the acids. A publication summarising the mass spectra of the purified acids and major derivatives might thus be a very useful source of reference for scientists and technologists studying these unusual compounds. We now report the characterisation of several of the purified acids and of the tetramethyl esters by electrospray ionisation mass spectrometry (ESI-MS) in both positive ion and negative ion modes, by multistage ESI-MS with a suggested rationalisation of the ions produced, by positive ion atmospheric solids analysis probe (ASAP) atmospheric pressure chemical ionisation (APCI), and by positive ion electron ionisation (EI)-MS. Tentative identifications of C(80) acyclic, mono-, bi- and tricylic tetraacids and the δ(13)C isotope values of a mixture of the semi-pure acids determined by MS are also reported for the first time.
Authors:
Paul A Sutton; Benjamin E Smith; Steven J Rowland
Related Documents :
18422288 - Asymmetric transfer hydrogenation of beta,gamma-alkynyl alpha-imino esters by a brønst...
11760998 - Nonsaponifiable lipid components of the pollen of elder (sambucus nigra l.).
15241938 - Analysis of the labial gland secretions of the male bumble bee bombus perplexus cresson...
17206608 - Aminocarbonyloxymethyl ester prodrugs of flufenamic acid and diclofenac: suppressing th...
22621748 - Ultrasound assisted copolymerization of acrylonitrile with n-amino phenyl maleimides an...
2892568 - Amino acid neurotransmitter abnormalities in huntington's disease and the quinolinic ac...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Rapid communications in mass spectrometry : RCM     Volume:  24     ISSN:  1097-0231     ISO Abbreviation:  Rapid Commun. Mass Spectrom.     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-10-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8802365     Medline TA:  Rapid Commun Mass Spectrom     Country:  England    
Other Details:
Languages:  eng     Pagination:  3195-204     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 John Wiley & Sons, Ltd.
Affiliation:
Petroleum and Environmental Geochemistry Group, Biogeochemistry Research Centre, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK.
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:  Determination of eight selected organophosphorus insecticides in postmortem blood samples using soli...
Next Document:  Analysis of the hydrogen and oxygen stable isotope ratios of beverage waters without prior water ext...