Routine analysis of hydrocarbons, PCB and PAH in marine sediments using supercritical CO2 extraction

被引：30

作者：

Berg, BE ^{[1
]}

Lund, HS ^{[1
]}

Kringstad, A ^{[1
]}

Kvernheim, AL ^{[1
]}

机构：

[1] SINTEF, N-0314 Oslo, Norway

来源：

CHEMOSPHERE | 1999年 / 38卷 / 03期

关键词：

supercritical CO2 extraction; automated SFE; solvent reduction; routine analysis; THC; PCB; PAH;

D O I：

10.1016/S0045-6535(98)00213-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Automated Supercritical Fluid Extraction (SFE), using CO2, was tested and optimised for routine analysis of hydrocarbons (THC), polychlorinated biphenyls (PCB) and polycyclic aromatic hydrocarbons (PAH) in marine sediments. The aim of the exercise was to reduce the amount of solvents used and to reduce the manual handling time for each sample. The sediments contained elemental sulphur, which was removed during the extraction step using activated Cu. Similar recoveries and reproducibility where found for THC when conventional solvent extractions and SFE where compared. Modifying the CO2 with methanol was necessary to obtain extraction recoveries similar to conventional extraction methods for PCB and PAH. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：587 / 599

页数：13

共 18 条

[1] Separation and quantification of components of edible fat utilizing open tubular columns in SFC. Sample introduction by direct injection and SFE coupled on-line to SFC [J].