Eliminate TKN Digestions and Obtain Better Nutrient Data

Courtesy of Shimadzu Scientific Instruments Inc

Nitrogen and Phosphorus are the principal elements referred to when discussing nutrient pollution. Current, and past, efforts to control these pollutants have been generally inadequate. Efforts to date have been predominantly “regulation at the pipe” and have not addressed the non-point sources that are the root cause of elevated concentrations of nutrients in ground and surface waters. This paper details why Total Kjeldahl Nitrogen, or TKN, analysis is often an insufficient method, and explains why new regulations and methods that define total nitrogen should be approved so that compliance with ambient water criteria can be accurately assessed.

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