Tim, for such a large batch, evaporation/condensation might work best for
you to purify the batch, in case you have a round-bottom flask, a heating
mantle and a condenser (make sure that the system is leak-free at the
joints).

Hope this helps,


Nabil


On Wed, Jul 9, 2008 at 1:58 PM, tcp121 <[log in to unmask]> wrote:

> Greetings all...
>
> Does anyone have a recommendation for an additive to waters that can be
> used to kill organic activity, but still render them useful for O and H
> isotope analysis?  I've just received 2 liters of water from Perth that I am
> hoping to use as a heavy end member standard, but she's a tad on the green
> side.  I was hoping to filter it and treat it so that I may still use it.
>  We use mercury chloride to treat our DIC samples, but not sure I want to
> inject such a concoction into our TC/EA.
>
> Any ideas out there?
>
> Thanks...
>
> Tim Prokopiuk
>
> --------------------------------------------------
> Tim Prokopiuk
> B. Sc. Geology/Technician
> Saskatchewan Isotope Laboratory
> Room 241
> Department of Geological Sciences
> University of Saskatchewan
> 114 Science Place
> Saskatoon, Saskatchewan, Canada
> S7N 5E2
> Phone: (306) 966-5712
> Fax: (306) 966-8593
> Email: [log in to unmask]
>