Andrea Lini has a nice list of stable isotope suppliers on his UVM site:
Don't know if you'll be able to find a better price, but there are links
to a number of Canadian companies there.
Moritz Lehmann wrote:
> Dear all,
> I am looking for a supplier of O18-water. I know about Medical isotopes
> Inc. They sell 50g 10% 18O-H20 for 465$. Are there cheaper
> alternatives? Possibly in Canada?
> Moritz Lehmann, Ph.D.
> Centre de recherche GEOTOP-UQAM-McGill
> C.P. 8888, Succursale Centre-Ville
> Montréal (Québec) H3C 3P8, Canada
> Telephone 514-987-3000 x2452
> [log in to unmask]