Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Application of a polysiloxane-based extraction method combined with large volume injection-gas chromatography-mass spectrometry of organic compounds in water samples
Autor Schellin, M.; Popp, P.;
Journal / Serie Journal of Chromatography A
Erscheinungsjahr 2007
Department ANA;
Band/Volume 1152
Heft 1-2
Sprache englisch;
Keywords polysiloxane tubes; extraction method; solvent desorption; organic contaminants; large volume injection; water analysis
Abstract This work describes a novel, simple, and inexpensive approach for an absorptive extraction of organic contaminants from aqueous samples applying polysiloxane tubes. After the extraction, the tubes were desorbed with 200 µL of an organic solvent and 50 µL of the extract were transferred via large volume injection (LVI) into a gas chromatography-mass spectrometry system (GC-MS). Fourteen organic compounds covering a broad range in polarity with log Ko/w-values between 2.6 (atrazine) and 7 (polychlorinated biphenyl 138, PCB 138) were chosen as model compounds. The experimental parameters affecting the efficiency of the process such as desorption solvents, the addition of salt and pH-change, the extraction and desorption time were carefully optimised. The recoveries were compared with theoretical values. The limits of detection (LODs) were in the range of 0.5-5 ng/L and the precision was 7-15%. The method was successfully applied to the analysis of a contaminated river water sample.
ID 2245
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=2245
Schellin, M., Popp, P. (2007):
Application of a polysiloxane-based extraction method combined with large volume injection-gas chromatography-mass spectrometry of organic compounds in water samples
J. Chromatogr. A 1152 (1-2), 175 - 183