Determination of Sulfur Content in Fuel Oil Based on Constant Volume Method by X-Ray Absorption of Tritium Bremsstrahlung
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概要
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<I>A X-ray absorption method by bremsstrahlung from a tritium-zirconium source (2.5Ci) was studied as a rapid method for the estimation of sulfur content in fuel oil.</I><BR><I>Intensity of a transmitted radiation was measured by means of a MX-118 (Mullard Co.) Geiger Müller counter and staler. A constant volume method was adopted as a calibration from and a polypropyrene film ponch (5oμ in thickness) was utilized for a sample vessel. The sulfur content of the sample was calculated upon the correction procedures of density, temperature and carbon-hydrogen mass ratio, and counting rates, by the X-ray counting rate of standard aluminium plate as well as by the β-ray counting rate of standard pure hydrocarbon, n-heptane.</I><BR><I>The carbon-hydrogen mass ratio of the sample was determined on the basis of a strontium 90-β radiation source (96 μ Ci) by the same basic apparatus.</I><BR><I>The results obtained were as follows</I>:<BR>1) <I>All of fuel oil containing sulfur content up to 5% are applicable.</I><BR>2) <I>Time required for determination in for around 10 to 15 minutes, including calculation.</I><BR>3) <I>Accuracy on standard samples containing less than 5% of sulfur content be approximately 1.7% of sulfur concentration and also reproducibility in fuel oil less than 5% of sulfur content be about 1.3% of sulfur concentration.</I><BR><I>Accuracy and presision on this method can be compared with those of the burning-tube (using oxvgen gas as a burning gas) or of the bomb-sulfur method, or can be estimated still more. Moreover, in this method, the above presision is able to be maintained by staffs even if they are the skilled or the semiskilled.</I>
- 社団法人 日本アイソトープ協会の論文
社団法人 日本アイソトープ協会 | 論文
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