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United States Environmental Protection Agency
EPA National Library Network
Search Results for the EPA National Library Catalog
Items Found: 6
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Your Search: (SUBJECT=Water Nitrogen content Analysis.)
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CEMM/GEMMD Library/Gulf Breeze,FL
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Method 1686 : nitrate/nitrite-N in water and biosolids by manual colorimetry.
Method 1687 : total Kjeldahl nitrogen in water and biosolids by automated colorimetry with preliminary distillation/digestion.
Method 1688 : total Kjeldahl nitrogen in water and biosolids by automated colorimetry with preliminary semi-automatic digestion.
Method 245.7 : mercury in water by cold vapor atomic fluorescence spectrometry : draft.
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 /
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.
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