Kjeldahl's method
The Kjeldahl method, it is seen.
To measure nitrogen, oh so fine,
In substances organic, and in ammonia's line.
In eighteen eighty-three, the method he told.
With tubes and flasks, he did devise,
A way to analyze proteins, oh so wise.
Organic substances, for goodness sake.
Into a flask, we place it there,
With sulfuric acid, we handle with care.
To break down the proteins, oh what a sight.
Ammonia and ammonium, they are set free,
But nitrate, it's not included, you see.
The nitrogen content, oh how kind.
With Kjeldahl's method, we can now say,
The protein content, we've measured today.
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LM-5 (disambiguation)