Hi,

try Isotec, they have different enrichments, for example

http://www.sigmaaldrich.com/catalog/search/ProductDetail/ALDRICH/487090


Peter



On Thursday 16 February 2006 08:35, Nurgul Balci wrote:
> I am currently doing Post-Doc in University of Missouri,
>
> > Department of
> > biochemistry. For my research , I need to buy  water having heavy 18O(80
>
> per
>
> > mil or
> >
> > > higher). If you could please provide some information such as where I
> >
> > could get , I would appreciate it.

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