1981 年 60 巻 9 号 p. 787-796
The researches in classification of the various types of crude oils were carried out by the high pressure liquid chromatography (HPLC) and by the fluorescence spectrophotometry.
Checking up about seventy crude oils, it was found that they could be grouped into six classes (a-f type) by the results of U.V.patterns and R.I.patterns of HPLC, and also into six classes (3-8 type) by the results of fluorescent spectrum.
And it was found that crude oils could be classified in almost all cases by the results of HPLC, fluorescent spectrum, sulphur/nitrogen weight ratio and vanadium/nickel weight ratio.
This method may be applied as one characteristic to identify similarity and kind of spilt oils.