02341oam 2200601 450 991071390120332120200819080813.0(CKB)5470000002504677(OCoLC)985370548(OCoLC)995470000002504677(EXLCZ)99547000000250467720170503d2003 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierMethods of analysis by the U.S. Geological Survey National Water Quality Laboratory determination of organophosphate pesticides in bottom sediment by gas chromatography with flame photometric detection /by Virendra K. Jha and Duane S. WydoskiDenver, Colorado :U.S. Department of the Interior, U.S. Geological Survey,2003.1 online resource (vi, 30 pages) illustrationsWater-resources investigations report ;02-4222Includes bibliographical references (pages 30).Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory River sedimentsAnalysisWaterPesticide contentMeasurementOrganophosphorus compoundsAnalysisGas chromatographyFlame photometryFlame photometryfastGas chromatographyfastOrganophosphorus compoundsAnalysisfastWaterPesticide contentMeasurementfastRiver sedimentsAnalysis.WaterPesticide contentMeasurement.Organophosphorus compoundsAnalysis.Gas chromatography.Flame photometry.Flame photometry.Gas chromatography.Organophosphorus compoundsAnalysis.WaterPesticide contentMeasurement.Jha Virendra K(Virendra Kumar),1946-1399793Wydoski Duane S.Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910713901203321Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory3465695UNINA