NEW CHROMATOGRAPHIC METHODS FOR ASPHALT ANALYSIS
- 1 January 1992
- journal article
- research article
- Published by Taylor & Francis in Fuel Science and Technology International
- Vol. 10 (4), 1071-1082
- https://doi.org/10.1080/08843759208916034
Abstract
New methods in the analysis of asphalt by size exclusion chromatography (SEC) and supercritical fluid chromatography (SFC) are described. The evaporative analyser and viscometric detectors provide a more nearly universal response in SEC than does the UV detector; a number of alternatives to polystyrene as retention volume calibration standards were investigated. SFC permitted simulated distillation at much lower temperatures than in GC, with closer correspondence to actual distillation behaviourKeywords
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