Search Results for the EPA National Library Catalog

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Your Search: (SUBJECT=Water Nitrogen content Analysis)

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Select Item	Title	Year Published
1	Method 1686 : nitrate/nitrite-N in water and biosolids by manual colorimetry.	2001
2	Method 1687 : total Kjeldahl nitrogen in water and biosolids by automated colorimetry with preliminary distillation/digestion.	2001
3	Method 1688 : total Kjeldahl nitrogen in water and biosolids by automated colorimetry with preliminary semi-automatic digestion.	2001
4	Method 245.7 : mercury in water by cold vapor atomic fluorescence spectrometry : draft.	2001
5	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 /	2000
6	Report to U.S. Public Health Service Region IX, Water Supply and Pollution Control Division on a study of methods suitable for the analysis and preservation of nitrogen forms in an estuarine environment.	1965

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