Does Hach have a Total Organic Nitrogen test

Document ID

Document ID TE6361

Published Date

Published Date 13/03/2017
Question
Does Hach have a Total Organic Nitrogen test
Summary
Total organic nitrogen test.
Answer
Hach does not have a method for directly measuring Total Organic Nitrogen.
There are two ways to deteriming the Total Organic Nitrogen of a sample. 
Either measure the TKN (Total Kjeldahl Nitrogen) and subtract the Ammonia results to calculate the Total Organic Nitrogen, or measure the Total Nitrogen and Subtract the Total Inorganic Nitrogen result to calculate the Total Organic Nitrogen.