Re: [Fwd: Re: [CH] Chem Question]

Keith Stephenson (keith@stephensonk.freeserve.co.uk)
Tue, 23 May 2000 00:51:15 +0100

> > Question #1
> >
> > What is kjeldahl Nitrogen ?
> >
kjeldahl is the process used to liberate the nitrogen so it can be measured,
from memory you boil the sample in concentrated sulphuric acid and then add
selenium, then do a titration. Its commonly used (or used to be) in brewing
to measure the nitrogen in the malt.

Keith>