RECOVERY OF DIESEL FUEL FROM CLAYS BY SUPERCRITICAL FLUID EXTRACTION GAS-CHROMATOGRAPHY

被引：15

作者：

EMERY, AP

CHESLER, SN

MACCREHAN, WA

机构：

[1] Organic Analytical Research Division, Chemical Science and Technology Laboratory, National Institute of Standards and Technology, Gaithersburg

来源：

JOURNAL OF CHROMATOGRAPHY | 1992年 / 606卷 / 02期

关键词：

D O I：

10.1016/0021-9673(92)87028-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Supercritical fluid extraction (SFE) coupled with gas chromatography was used to analyze diesel fuel oil adsorbed on montmorillonite, kaolinite and illite clays. Adsorptive differences in the clays were reflected in the SFE desorption conditions required. However, in all instances the diesel hydrocarbon recovery was greater than 75% with an extraction precision of 2-3%. The short extraction times of 20 min and the other benefits of SFE make this method attractive over classical methods used to extract diesel oil quantitatively from soils.

引用

页码：221 / 228

页数：8

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