EST

GC/MS Analysis of Aromatics in Gasoline ASTM D5769

Speaker
  • Agilent Technologies, Senior Applications Chemist
    Biography

      Jim McCurry is a senior applications chemist specializing in analytical chemistry measurements using gas chromatography (GC) and mass spectrometry (MS).  His current work is in multidimensional GC, trace analysis in complex matrices, and fast GC, and GC/MS.  He is a member of the American Chemical Society and the American Society of Testing and Materials (ASTM).  Jim holds a B.S. in Biochemistry from the University of Scranton and an M.S. and Ph.D. in Chemistry from Lehigh University.


    Abstract

    The unavailability of fluorescence dye has impacted the widely used D1319 method for determining total aromatics in reformulated gasoline.  To remain in compliance with EPA regulations, many labs are considering the more complex D5769 GC/MS method for total aromatics analysis.  This presentation will offer best practices for setting up, optimizing, and running this method on a new, cost effective Agilent 8860/5977 GC/MS system.  To further reduce operating expenses, the use of hydrogen carrier gas will be shown as well as a configuration to perform the analysis in less than 9 minutes.  For all three approaches, compliance with the D5769 performance criteria will be demonstrated.  Precision and accuracy will be evaluated using Tier III gasoline samples obtained from an inter-laboratory cross-check program (ILCP).


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