OFF-LINE SUPERCRITICAL FLUID EXTRACTION-CAPILLARY GC APPLICATIONS IN ENVIRONMENTAL-ANALYSIS

被引：48
作者：
DAVID, F
VERSCHUERE, M
SANDRA, P
机构：
[1] STATE UNIV GHENT,ORGAN CHEM LAB,KRIJGSLAAN 281 S4,B-9000 GHENT,BELGIUM
[2] EINDHOVEN UNIV TECHNOL,5600 MB EINDHOVEN,NETHERLANDS
[3] RES INST CHROMATOG,B-8500 KORTRIJK,BELGIUM
来源：
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1992年 / 344卷 / 10-11期
关键词：
D O I：
10.1007/BF00323747
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The successful application of supercritical fluid extraction for environmental samples requires that the extraction conditions determined for spiked samples must be optimized in order to overcome the solute-matrix interactions that are responsible for lower recoveries in real samples compared to spiked samples. In this optimization, preserving the selectivity of exraction is a key factor. This principle is demonstrated by the extraction of PCBs from different matrices. Some other environmental examples also illustrate the importance of matrix-solute interactions.
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页码：479 / 485
页数：7
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