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NEW YORK Ui .VERSITY MEDICAL C. ATER
Institute of Environmental Meclicine
S50 FIRST AVENUE, NEWYORK, N.Y. 10016
me
AREA 242 679-3200
401646
ANTHONY J. LANZA RESEARCH LABORATORIES AT UNIVERSITY VALLEY
LONG MEADOWROAD, STERLING FOREST, TUXEDO, NY
MAIL ANO TELEPHONE ADORESS: 550 FIRST AVENUE, NEW YORK, N.Y. 10016
Fe
a te NT.
May 9,
K
1977
Dr. Robert A. Conard
Senior Scientist’
Medical Research Center
Brookhaven National Laboratory
Upton, New York
11973
Dear
Bob:
As I promised in my last letter,
results
for the urine
samples of Drs.
the Pu-239,240 bioassSay
have
finally been completed.
Each of these samples was spiked
with a small amount of Pu-242 in order to determine plating
and chemical recoveries.
For Dr.
was 0.00140.004 dpm/l and for Dr.
AS you can see,
both values can he
the final
result
as 0.02540.023 dpm/1.
considered
zero,
results
which are not surprising considering external. counting data
and length of exposure.
Americium-241 was not measured in these samples as it.
involved some additional chemistry and it was assuined that
Pu-239 would be the nuclide of
greatest amount.
I hope this
interest and present
in the
information has been of help to your
studies.
Very truly yours,
ION
NT”
Norman Cohen,
Assistant
Ph.D.
Professor
NC/j
PRIVACY ACT MATERIAL REMOVED
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