Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1016/S0021-9673(02)00135-8 |
| Title (Primary) | Membrane-assisted solvent extraction of triazines and other semi-volatile contaminants directly coupled to large-volume injection-gas chromatography-mass spectrometric detection |
| Author | Hauser, B.; Popp, P.; Kleine-Benne, E. |
| Source Titel | Journal of Chromatography A |
| Year | 2002 |
| Department | ANA |
| Volume | 963 |
| Issue | 1-2 |
| Page From | 27 |
| Page To | 36 |
| Language | englisch |
| Keywords | Membrane-assisted solvent extraction; Extraction methods; Large-volume injection; Instrumentation |
| Abstract | A simple device was developed for in-vial liquid–liquid extraction using a polymer membrane (nonporous polypropylene) to separate an aqueous sample from an organic extractant. The membrane consisted of tubing with an internal diameter of 6 mm and a wall thickness of 0.05 mm, which was heat-sealed at the lower end and filled with 500 μl hexane. This membrane bag was incorporated into a conventional 20 ml headspace vial suitable for a multi-purpose sampler (MPS 2, Gerstel, Mülheim, Germany) directly interfaced to a gas chromatograph with a mass-selective detector. The sampler enabled the extraction vial to be mixed at a defined temperature with subsequent large-volume injection of the organic extract taken from the membrane bag. The method was evaluated using several triazines, 2,4-dichloroaniline, α-hexachlorocyclohexane and phenanthrene as model compounds. Extraction parameters such as temperature, agitation speed, and extraction time were optimised. Recoveries of 60–90% were achieved after 30 min extraction. By increasing the injection volume to 100 μl, detection limits of 1–10 ng/l were determined. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=5570 |
| Hauser, B., Popp, P., Kleine-Benne, E. (2002): Membrane-assisted solvent extraction of triazines and other semi-volatile contaminants directly coupled to large-volume injection-gas chromatography-mass spectrometric detection J. Chromatogr. A 963 (1-2), 27 - 36 10.1016/S0021-9673(02)00135-8 |
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