Extraction of hydrocarbon contamination from soils using accelerated solvent extraction

被引：87

作者：

Richter, BE ^{[1
]}

机构：

[1] Dionex, SLCTC, Salt Lake City, UT 84119 USA

来源：

JOURNAL OF CHROMATOGRAPHY A | 2000年 / 874卷 / 02期

关键词：

pressurized liquid extraction; soil; extraction methods; oils; diesel fuel; hydrocarbons;

D O I：

10.1016/S0021-9673(00)00073-X

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Accelerated solvent extraction was studied asa method for the extraction of hydrocarbon contamination from wet and dry soils. Temperatures from 125 to 200 degrees C and six different solvents were investigated. Nonpolar solvents could not be achieve complete recovery from wet soils at the temperatures studied. Optimum conditions were found to be 175 degrees C with dichloromethane-acetone (1:1. v/v) with 8-min heat up time and 5-min static time. Quantitative recoveries for diesel range organics (DROs) and waste oil organics (WOOs) were obtained using the optimized conditions. The recovery of DROs and WOOs from three matrices at two concentrations (5 and 2000 mg/kg) averaged 115%. These results show that accelerated solvent extraction can generate results comparable tp those obtained using Soxhlet or sonication. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：217 / 224

页数：8