01781nam 2200433Ka 450 991069455830332120160204110140.0(CKB)5470000002363109(OCoLC)61340998(EXLCZ)99547000000236310920050825d2000 ua 0engtxtrdacontentcrdamediacrrdacarrierMethods of analysis by the U.S. Geological Survey Organic Geochemistry Research Group determination of selected herbicides and their degradation products in water using solid-phase extraction and gas chromatography/mass spectrometry /by J.L. Kish ... [and others][Lawrence, Kan.] :[U.S. Dept. of the Interior, U.S. Geological Survey],[2000.]U.S. Geological Survey open-file report ;00-385Title from title screen.Distributed to depositories in microfiche, shipping list no: 2002-0336-M.Includes bibliographical references.Methods of analysis by the U.S. Geological Survey Organic Geochemistry Research Group HerbicidesAnalysisMass spectrometryGas chromatographyHerbicidesAnalysis.Mass spectrometry.Gas chromatography.Kish J. L1381241Scribner Elisabeth A1381242Zimmerman L. R1381243Geological Survey (U.S.)U.S. Geological Survey Organic Geochemistry Research Group.GPOGPOBOOK9910694558303321Methods of analysis by the U.S. Geological Survey Organic Geochemistry Research Group3423672UNINA