Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory :
determination of wastewater compounds by polystyrene-divinylbenzene solid-phase extraction and capillary-column gas chromatography/mass spectrometry /
by Steven D. Zaugg [and others].

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Item Link Original Source
Full view   no.01-4186 University of Michigan
Full view   no.01-4186 2002 The Ohio State University