--- Begin Message ---
- To: Tim Gorringe <gorringe@pa.uky.edu>
- Subject: Re: LOT NO. CR1552
- From: Ros Shelhamer <rshelhamer@sial.com>
- Date: Fri, 3 Jun 2005 09:13:57 -0500
- In-reply-to: <429F6939.1070400@pa.uky.edu>
Tim,
I have been told that this is the only lot of Deuterium depleted water that we have. It was obtained from the Canadian Government. The Canadian Government is the only source of the material in the world. They have only produced one batch of this material and have been selling it for the last 30 years. The analysis that they did reported it less than 0.5ppm Deuterium for the lot. I hope this helps.
Thanks,
Roswell Shelhamer, Midwest Technical Sales Consultant
Isotec
3858 Benner Rd.
Miamisburg, OH 45342
Office: 800-448-9760 Ext. 343
Cell: 937-367-6418
Fax: 937-859-4878
Email: rshelhamer@sial.com
Please visit us at:
http://www.sigmaaldrich.com/isotec
Tim Gorringe <gorringe@pa.uky.edu> 06/02/2005 03:16 PM
To: Ros Shelhamer <rshelhamer@sial.com>
cc:
Subject: LOT NO. CR1552
Hi Ros,
I confirmed that our measurements at PSI of LOT NO. CR1552
were performed
after the spectrometer had "reached equilibrium". Along with the three
measurements
on LOT NO. CR1552 that averaged 3ppm some measurements were made on
two other
samples (three measurements each), one averaging 1.8ppm and one
averaging 2.5pm,
that were consistent with independent measurements using a Univ. of
Zurich mass
spectrometer. Do you have the no's for your LOT NO. CR1552 mass spec
measurements.
Cheers, Tim.
--- End Message ---