aap Reefe
|
i
ye
E
i
Pei
:
;
ae
Pd:
f
360
K. M. WONG
TABLE J]
ANALYSIS OF SEA WATER
oT
Sample no.
Location
Mig
|4 3
bs 3
228
33
32
27° 47'N 67° 35'W
27° 47'N 67° 35'W
27° 47'N 67° 35'W
Dec. 1968
Dec. 1968
Dec. 1968
15+0.5
26+0.5
2.6+0.7
i 4
267
36° 23'N 70° 3° W
June 1969
2640.8
me
269
36°23'N 70°3'W
June 1969
1.4+0.2
tak
| :
268
36°23'N 70° 3'W
Date
June 1969
2
am
729 Py
{d.p.m. per 1000 kg)
Std. dev.
0.6
2320.5
36°23'N 70°3'W
June 1969
Rel
rae
389
WHOI Aquarium
Aug. 1970
2.94+0.8
0.3
13
390
line
Aug. 1970
- td
ne
207
208
IAEA STD.1
Seawater|
1970
1970
12345
11645
*
210
Seawater |
1970
118+6
DOB
209
ms
211
3
213
:
;
;
;
;
A
+
ye :
rE
f :
Seawater |
Seawater 2
1970
1970
s
;
316 +18
1970
298412
214
Seawater 2
1970
313+15
Seawater 2
1970
-
1
P
,
I
324421
R
}
°|
TABLE III
A
ANALYSIS OF SEDIMENTS
,
Sample no.
Location
Date
739 Py
(d.p.m. per kg dry wt.}°
Std. dev.
13
13-R
16
Cape Cod, Mass.
Cape Cod, Mass.
Cape Cad, Mass.
1968
7247
80+2
82+6
6
Cape Cod, Mass.
1968
1968
1968
202
Bombay, India
1970
374+ 15
7
16-R
203
204
:
a
* The + values are the | o of the counting error.
.
3
144+8
Seawater 2
t
-
25-04
212
:
07
270
fy
<
=
7
per 3
ane
%
Bombay,India
Bombay,India
1970
1970
8442
389+ 15
iM
A
i
ft
23
a-
374415
.
° The + values are the 1 o of the counting error.
ij
Replicate analysis
Analyses of sea water, sediments and organisms are shown in Tables II-IV.
The average standard deviationof the replicates is well within the I ¢ counting errorof
the samples (except for sea-water samples No. 207-210).
co
at
,
Contamination and blank activity
Little or no plutonium-239 contamination was found in reagent and simulated
.
~
:
I
Er
tol
of
pri
Su
to
det
Op<
hal
sea-water blanks (Table V). The simulated sea-water samples were obtained from deep
.
.
:
toe
3
oil well brine known to befree offall-out radioactivities. The average 7°? Pu concen-
.
.
Anal. Chim. Acta. 36 (1971) 355-364
‘
wa:
&