Question:medium

In water and wastewater analysis, Kjeldahl nitrogen (TKN) represents the sum of

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Remember: \[ \boxed{ \text{TKN} = \text{Organic N} + \text{NH}_3\text{-N} } \] Nitrate and nitrite are not included.
Updated On: Jul 18, 2026
  • Organic nitrogen + nitrate nitrogen
  • Organic nitrogen + nitrite nitrogen
  • Organic nitrogen + ammonia nitrogen
  • Ammonia nitrogen + nitrate nitrogen
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The Correct Option is C

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