Put 5 ce of plasma (or serum) in a vial with a erystal of thymol,
and an identifying label.
_
If convenient, store samples cold or frozen.
4, . Be sure to get weight and height of subjects on day total
body water is deternined..
5.
Return the urine (and/or plasma) samples to me for tritium
assay.
We will determine the total body water values and mail
you the results.
One ce of our stock HTO contains about 350 pre tritium.
Assuming a normal biological half-time for turnover, the accumulative radiation dose in a 70 Kgm. man is about 17 millirads.
I still expect to leave for the Himalaya about the first
of February, however, Mrs. Rosemary Hughes will run the assays
andi answer any questions you may have while I am away.
yeas
t. Shear
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Sincerely,
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William HE. Sirti
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