Record Display for the EPA National Library Catalog

RECORD NUMBER: 6 OF 50

OLS Field Name OLS Field Data
Main Title Area Overlap Method for Determining Adequate Chromatographic Resolution.
Author Knoll, J. E. ; Midgett, M. R. ;
CORP Author Environmental Monitoring Systems Lab., Research Triangle Park, NC.
Year Published 1982
Report Number EPA-600/J-81-339;
Stock Number PB84-174705
Additional Subjects Gas chromatography ; Gas analysis ; Chemical analysis ; Air pollution ; Reprints ; Air pollution detection ; EPA method 110 ; Area overlap method ; Numerical solution
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB84-174705 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 5p
Abstract
The Area Overlap method for evaluating analytical chromatograms is evaluated and compared with the Depth-of-the-Valley, IUPAC and Purnell criteria. The method is a resolution criterion based on the fraction of area contributed by an adjacent, overlapping peak. It accounts for both the relative magnitudes and widths of the peak, and uses simplified calculation procedures. Peak distortion limits the method's usefulness as a rectification procedure. The Area Overlap and Depth-of-the-Valley methods showed considerable correlation when the width of the contaminating peak exceeded that of the sample. Neither the IUPAC nor the Purnell criterion correlated with the Area Overlap method when magnitude was varied. At constant magnitude, ranges of both agreement and disagreement were shown.