One can make modern CO2 by burning a tree as long as you choose one that is
less than 50 years old.
Or one can make "2005" modern CO2 by burning grass clippings, hay, straw or
anything that grew this year. Office paper will also work (the recycler and
shredder can have a rest).
The ideas of bubbling gas through a trap and of checking the delta13C are
University of Toronto
On Thu, 6 Oct 2005 12:13:47 -0400, Inigo Auza-Aldasoro
<[log in to unmask]> wrote:
>we are searching for a CO2-gas supplier with modern 14C signature. We need
>it to use as working standard. The local suppliers process the CO2 from
>dead 14C sources (natural gas, carbonates...)
>Does anybody know about any CO2-gas supplier which obtains the CO2 from
>modern carbon source (with "alive 14C signature")?
>Thanks a lot,
>Environmental Tracers Lab,
>School of Civil Engineering, Queen's Univ. Belfast
>David Keir Building, Stranmillis Rd.