X-Ray Fluorescence Determination of Sulphur in Oils by a Thin Film Method.
MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)
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A thin film dilution sample preparation technique for the determination of sulphur in petroleum products is described. An internal control standard compensates for variations in oil film thickness. The procedure utilises a mixture of sample and an alkyd resin to improve adhesion to a Mylar substrate and to reduce sample flow during irradiation. The method is quantitative and has good repeatability for sulphur contents up to 5. Accuracy is comparable with that obtained by chemical methods. The detection limit for sulphur was estimated to be 0.03.
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