Date of Award

Fall 2000

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Chemistry & Biochemistry

Program/Concentration

Chemistry

Committee Director

John B. Cooper

Committee Member

Kenneth G. Brown

Committee Member

Patricia A. Pleban

Call Number for Print

Special Collections LD4331.C45 W565

Abstract

As early as 1950, Raman spectroscopy was proposed as a method to determine aromatics and olefins in hydrocarbon mixtures. Until recently, extensive use of Raman spectroscopy in the characterization of hydrocarbons has not been practical due to several limitations. One early limitation to Raman analysis was the absence of a high intensity and stable excitation source. This problem has been overcome with the advent of lasers. Another limitation was the presence of fluorescence in hydrocarbon fuels when excited by visible lasers. However, the development of Fourier-transform Raman spectrometers now allows Raman spectra to be collected using near-IR lasers (e.g. the Nd: YAG laser emitting at 1064 nm) which eliminate or severely reduce fluorescence in petroleum fuels. Therefore, FT-Raman spectroscopy was chosen to investigate its use for accurately determining various properties and concentrations in commercial petroleum fuel blends.

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DOI

10.25777/kp1y-cy73

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