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Wed, 15 Feb 2006 14:36:00 -0800 |
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> > 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.
Hi,
Depending on how much of this water you need, you could also try
"making" some of your own heavy water by evaporation - I did the same
thing under very carefully controlled environmental evaporative
conditions. By this, I mean that I left 2 litres of lab distilled
water in a beaker sitting on my windowsill for a couple of weeks.
When it had evaporated to an approx. volume of 500 ml, the d18O value
had increased from an initial value of -15 per mil to a final value
of +16 per mil. To get heavier d18O values, just let it evaporate
further.
Of course, water may evaporate a bit faster here in Nevada than it
will in Missouri.
Cheers,
Simon
--
*****
Simon Poulson
Research Assistant Professor
Dept. of Geological Sciences & Engineering MS-172
1664 N. Virginia St.
University of Nevada - Reno
Reno, NV 89557-0138. USA
(775) 784-1104
Fax: (775) 784-1833
[log in to unmask]
http://www.mines.unr.edu/isotope/simonhome.html
*****
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