Presentation Profile
Determination of Hydrocarbon Group Types and Select Hydrocarbons in Gasoline in Less than 15 Minutes Using Gas Chromatography – Vacuum Ultraviolet Absorption Spectroscopy
Currently Scheduled: 1/19/2018 - 1:55 PM - 2:25 PM
Room: Room 381 C
Main Author
Jack Cochran - VUV Analytics
- James Diekmann III - VUV Analytics
- Dan Wispinski - VUV Analytics
- Phillip Walsh - VUV Analytics
Abstract:
ASTM Method D8071 uses gas chromatography (GC) with vacuum ultraviolet (VUV) absorption spectroscopy to determine hydrocarbon group types, and select hydrocarbons and oxygenates, in automotive spark-ignition engine fuels. The uniqueness of VUV spectra enables individual compound deconvolution in complex gasoline samples, while similarity of spectra within a class permits easy totals reporting (paraffins, isoparaffins, naphthenes, olefins, aromatics). GC run time for D8071 is 33.5 min, but can be dramatically shortened through simple method translation to as little as 13.5 min. Fully automated data processing produces a compound and class report in under 60 sec.
