Proton NMR analysis of octane number for motor gasoline: Part V
- Suzuki Motor Corp., Hamamatsu (Japan)
- Showa Shell Sikiyu Tokyo (Japan)
A method to predict the octane number of automobile gasoline containing methyl tert-butyl ether (MTBE) by proton magnetic resonance (PMR) spectrometry was studied. Samples of gasoline whose octane numbers had been identified according to the ASTM standards (commercially available premium gasoline to which MTBE was added at rates of 7 vol % and 14 vol %) were used in this investigation of the effect of MTBE on the octane number. The findings were utilized to introduce a term regarding MTBE into the previously reported linear regression equation for estimating the octane number from the PMR spectrum, and the appropriateness of the linear regression equation was assessed. As a result the MTBE contents in the sample were determined with satisfactory accuracy by using a standard addition method, and a linear regression equation reflecting the effect of MTBE was obtained. These achievements are reported. 11 refs., 3 figs., 5 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 39267
- Journal Information:
- Applied Spectroscopy, Vol. 46, Issue 10; Other Information: PBD: Oct 1992
- Country of Publication:
- United States
- Language:
- English
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