紫外部吸収検出器を用いた高速ゲルパーミエーションクロマトグラフィーによる環境排出油の識別

概要

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To keep marine environment clean, it is important to clarify the source of oil pollution. For this purpose, discrimination of oils was studied by gel permeation chromatography. Molecular weight distribution of oil samples diluted with tetrahydrofuran was measured by high speed liquid chromatography. A column (50 cm in length and 7.9 mm in internal diameter) packed with HSG-15 was used. And chromatograms were recorded by measuring the absorbance of the eluates at 254 nm. The eluates were obtained under 50 kgs/cm^2 pressure of tetrahydrofuran as an eluent. Chromatograms of eight kinds of crude oils were recorded. It was found that the discrimination or each oil of Iranian light, Minas, Marban and Khafiji from other crude oils was possible. The profiles of the chromatograms of Iranian heavy, Kuwait, Futo and Oman were similar to each other. To study the effect of weathering on the properties of the spilled oil, crude oils were stored on the synthetic sea water for three years. The chromatograms of the weathered crude oils were similar to their unweathered oils. The proposed method could be applied to the identification of spilled oil samples with good results. Sensitivity and reproducibility of this method were satisfactory.
1976-11-10