Search Results for the EPA National Library Catalog

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Your Search: (SUBJECT=Water Nitrogen content Analysis.)

 
 
 

Select Item Title Year Published
Method 1686 : nitrate/nitrite-N in water and biosolids by manual colorimetry. 2001
Method 1687 : total Kjeldahl nitrogen in water and biosolids by automated colorimetry with preliminary distillation/digestion. 2001
Method 1688 : total Kjeldahl nitrogen in water and biosolids by automated colorimetry with preliminary semi-automatic digestion. 2001
Method 245.7 : mercury in water by cold vapor atomic fluorescence spectrometry : draft. 2001
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
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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