Record Display for the EPA National Library Catalog

RECORD NUMBER: 20 OF 37

OLS Field Name OLS Field Data
Main Title High-Performance Liquid Chromatographic/Mass Spectrometric Determination of Volatile Carboxylic Acids Using Ion-Pair Extraction and Thermally Induced Alkylation.
Author Tsai, C. P. ; Sahil, A. ; McGuire, J. M. ; Karger, B. L. ; Vouros, P. ;
CORP Author Northeastern Univ., Boston, MA. Dept. of Chemistry.;Environmental Research Lab., Athens, GA.
Year Published 1985
Report Number EPA-R-807325; EPA/600/J-86/014;
Stock Number PB86-177839
Additional Subjects Carboxylic acids ; Degradation ; Liquid chromatography ; Mass spectrometry ; Volatility ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB86-177839 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 6p
Abstract
Low molecular weight volatile carboxylic acids have been analyzed by high-performance liquid chromatography/mass spectrometry (HPLC/MS) using post-column derivatization and a moving belt interface. In order to prevent loss of the volatile solutes during transport to the mass spectrometer, the acids were ion paired with tetrabutylammonium counterions. Flash vaporization on the ion pairs into the mass spectrometer yielded butyl esters which were analyzed by chemical ionization MS. Aqueous samples containing the free carboxylic acids were analyzed by direct injection into the liquid chromatograph. Detection limits in the parts-per-billion range were achieved.