Analysis of Benzene in Gasolines by Supercritical Fluid Chromatography.
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概要
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We analyzed benzene in gasolines using supercritical fluid chromatography (SFC). A silicagel column and carbon dioxide for mobile phase were used for separation. The effect of column temperature and back pressure were also examined. For detection, we used a flame ionization detector (FID) or an ultra-violet absorption (UV) detector. For the UV detection, we adopted the wavelength of 260nm, since the detection of benzene in gasolines was practically uninfluenced by the olefins at 260nm. Using this SFC, there was no problem of coelution of 1-methyl-cyclopentene with benzene.The results of SFC analysis of gasolines were compared with those of gaschromatography analysis based on JIS K 25361993, and the results showed good agreement. This SFC requires about 30min to analyze a sample.
- 公益社団法人 石油学会の論文
公益社団法人 石油学会 | 論文
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