TKN (Total Kjeldahl Nitrogen) and Total Nitrogen are both measurements used to determine the amount of nitrogen present in a sample.

In order for the cycle to operate smoothly it is vital to know the amount of nitrogen contained in the various phases of the cycle. TKN analysis provides the opportunity to quantify the amount of nitrogen …

1.2 This method covers the determination of total Kjeldahl nitrogen in drinking, ground, and surface waters, domestic and industrial wastes.

Nov 14, 2024 · TKN is not only used to guide treatment processes, but also to monitor treatment effects and meet emission standards. Many countries and regions have strict regulations on the nitrogen …

Aug 28, 2025 · Total Kjeldahl Nitrogen (TKN) measures specific forms of nitrogen in various samples. This parameter indicates organic matter and potential pollutants, providing a comprehensive view of …

You can determine how much organic nitrogen is present in a water sample by separately measuring ammonia (see our ammonia fact sheet!) and subtracting the ammonia concentration from the TKN …

Also known as Total Kjeldahl Nitrogen (TKN), it is used for the quantitative determination of organic nitrogen plus ammonia (NH3), and ammonium (NH4+) in the chemical analysis of a compound.

Sep 7, 2025 · The total kjeldahl nitrogen (TKN) test measures organic nitrogen + ammonia nitrogen. Municipal wastewater treatment plants typically measure both the TKN and the ammonia …

Total Kjeldahl Nitrogen (TKN) is a measure of the amount of nitrogen in a sample of organic material, such as soil or water. It is named after Johan Kjeldahl, a Danish chemist who developed the method …

The Total Kjeldahl Nitrogen (TKN) method quantitates the amount of nitrogen contained in organic form based on the wet oxidation of organic matter using sulfuric acid and digestion catalyst.