In $DNA$ and $RNA,$ nitrogen atoms are present in the ring system. Can the Kjeldahl method be used for the estimation of nitrogen present in these?
(N/A) In $DNA$ and $RNA,$ nitrogen is present in heterocyclic rings.
The Kjeldahl method cannot be used to estimate nitrogen present in rings,$-NO_2$ groups,or azo groups because the nitrogen in these systems cannot be completely converted into $(NH_{4})_{2}SO_{4}$ during the digestion process.
Therefore,the Kjeldahl method is not suitable for the estimation of nitrogen in $DNA$ and $RNA$.
The Kjeldahl method cannot be used to estimate nitrogen present in rings,$-NO_2$ groups,or azo groups because the nitrogen in these systems cannot be completely converted into $(NH_{4})_{2}SO_{4}$ during the digestion process.
Therefore,the Kjeldahl method is not suitable for the estimation of nitrogen in $DNA$ and $RNA$.
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