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



                     Nick Ostle
      Institute of Terrestrial Ecology
                ITE- Merlewood
             Grange-Over-Sands
              Cumbria, LA11 6JU
                     England

           e-mail: [log in to unmask]
        tel: ++44 (0)15395 32264
        fax: ++44(0)015395 34705