Published: Journal of Chromatographic Science, Volume 36, Number 9, September 1998, pp. 444-448.
Optimized Supercritical Fluid Chromatographic Instrumentation
for the Analysis of Petroleum Fractions
Bruce E. Richter, Brian A. Jones, and Nathan L. Porter
The performance of a supercritical fluid chromatograph (SFC) for the analysis of petroleum fractions, specifically diesel and jet fuels, is reported. The SFC instrument passes the requirements of ASTM Method 5186-96 for accuracy, linearity, and repeatability following the proper adjustment of detector gas flows and detector temperature. Up to a sixfold improvement in the precision (measured as relative standard deviation) is seen when the pressure transducer is temperature-controlled independent of the laboratory air temperature.
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