Stir Bar Sorptive Extraction (SBSE) applied to Environmental Aqueous Samples
App Note 2/2000
For the analysis of organic compounds in aqueous environmental matrices several sample preparation methods are used. Volatile organic compounds can be analyzed using (static) headspace, purge and trap or liquid-liquid extraction. Semi-volatiles are analyzed after liquid-liquid extraction or solid phase extraction (SPE). During the past years, miniaturization has become a dominant trend in analytical chemistry. Typical examples of miniaturization in sample preparation techniques are micro liquid-liquid extraction (in-vial extraction), ambient static headspace and disk cartridge SPE. In combination with state-of-the-art analytical instrumentation, this resulted in faster analysis, higher sample throughput, lower solvent consumption, less manpower in sample preparation while maintaining or even improving sensitivity.