But N2O should be a mass 44 problem, shouldn't it?

Lois Roe


On Thu, 5 Aug 1999, Frank Pawellek wrote:

> > Greetings ISOGEOCHEMISTS,
> >
> > I am using 13C enriched CO2 to pulse label grassland vegetation and
> > was wondering if anyone had some tips/references as to the best way to
> > separate the O from the 13CO2 do that I can make 18/17/16O
> > determinations at natural abundance and enrichment levels?
> >
> > thanks in advance,
> >
> > nick
>
> Of course you get the del 18 O values "automatically" when you are
> measuring the 13 C. But if  I remember correctly, wasn't there a
> problem with N2O in the samples that is not easily removed, and
> mostly has mass 46 ? That might become a problem especially when
> measuring soil gas or related gases...
>
> Frank Pawellek
>
> +++++++++++++++++++++++++++++++++++++++++++++++
> Frank Pawellek
> Institut fuer Geologie
> Lehrstuhl fuer Sediment- und Isotopengeologie
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> +++++++++++++++++++++++++++++++++++++++++++++++
>