Patton, Charles J., Truitt, Earl P. (2000) Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of ammonium plus organic nitrogen by a Kjeldahl digestion method and an automated photometric finish that includes digest cleanup by gas diffusion. Open-File Report 2000-170. US Geological Survey doi:10.3133/ofr00170

See Also

These are possibly similar items as determined by title/reference text matching only.

	Patton, Charles J., Truitt, Earl P. (1992) Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of the total phosphorus by a Kjeldahl digestion method and an automated colorimetric finish that includes dialysis. Open-File Report Vol. 1992 (92-146) US Geological Survey doi:10.3133/ofr92146
	Brown, G.E., McLain, B.J. (1994) Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of antimony by automated-hydride atomic absorption spectrophotometry. Open-File Report Vol. 1994 (93-664) US Geological Survey doi:10.3133/ofr93664
	(1993) Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of inorganic and organic constituents in water and fluvial sediments. Open-File Report Vol. 1993 (93-125) US Geological Survey doi:10.3133/ofr93125
	Garbarino, John R. (2000) Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of whole-water recoverable arsenic, boron, and vanadium using inductively coupled plasma-mass spectrometry. Open-File Report Vol. 2000 (99-464) US Geological Survey doi:10.3133/ofr99464
	Rose, D.L., Schroeder, M.P. (1995) Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of volatile organic compounds in water by purge and trap capillary gas chromatography/mass spectrometry. Open-File Report Vol. 1995 (94-708) US Geological Survey doi:10.3133/ofr94708w
	Patton, Charles J., Truitt, Earl P. (1995) U.S. Geological Survey nutrient preservation experiment; nutrient concentration data for surface-, ground-, and municipal-supply water samples and quality-assurance samples. Open-File Report Vol. 1995 (95-141) US Geological Survey doi:10.3133/ofr95141
	Hoffman, G.L., Fishman, M. J., Garbarino, J.R. (1996) Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; in-bottle acid digestion of whole-water samples. Open-File Report Vol. 1996 (96-225) US Geological Survey doi:10.3133/ofr96225
	Brenton, R.W., Arnett, T.L. (1993) Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of dissolved organic carbon by UV-promoted persulfate oxidation and infrared spectrometry. Open-File Report Vol. 1993 (92-480) US Geological Survey doi:10.3133/ofr92480
	Faires, L.M. (1993) Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of metals in water by inductively coupled plasma-mass spectrometry. Open-File Report Vol. 1993 (92-634) US Geological Survey doi:10.3133/ofr92634
	McLain, B.J. (1993) Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of chromium in water by graphite furnace atomic absorption spectrophotometry. Open-File Report Vol. 1993 (93-449) US Geological Survey doi:10.3133/ofr93449
	Markovchick, D.J., Lewis, J.A., Brenton, R.W., Iverson, J.L., Wharry, H.L. (1994) Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of triazine and other nitrogen-containing compounds by gas chromatography with nitrogen phosphorus detectors. Open-File Report Vol. 1994 (94-37) US Geological Survey doi:10.3133/ofr9437