%0 conference poster %@ %A Ahrens, L., Plassmann, M., Temme, C., Ebinghaus, R. %D 2007 %J 27th International Symposium on Halogenated Persistent Organic Pollutants, DIOXIN 2007 %T Determination of per- and polyfluorinated alkyl compounds using liquid chromatography tandem mass spectrometry in water samples %U %X