10
for counting and a 500 ml sample saved for possible future use,
To each of the 100 ml samples 5 ml of saturated sodium carbonate was added.
1
t
‘
pore HA paper ina Millipore filter and counted.
|4
naturally occurring K
4
4O ~,
+
By this method
o
normally present in sea water to the
extent of about 600 d/m, is eliminated from the portion which
f
‘, arid, Sai
The precipitate was collected on 14-inch Millt-
is counted.
Radiocesium is also lost in the filtrate but ac-
-
counts for less than one per cent of the total activity at the
time of collection.
The water samples processed at EMBL were treated ina sim- ««ms'
ilar manner except that a 500 ml sample was filtered and only
!
t
one 100 ml sample was prepared for counting.
]
i
{
Fish Samples:
Time and facilities were not available to
collect fish in numbers.
However,
on deck and taken as samples,
three flying fish were found
Larval forms and small fish were
‘
captured in the plankton nets but were not processed separately. 4
-In an attempt to increase the take of flying fish a section of
. 4
white canvas was stretched on the starboard side near the after
gun mount.
A light was kept burning at night to illuminate the
canvas.
The three flying
+de
fish were frozen aboard ship.
and muscle were processed at the EMBL.
|
The liver 2
These tissues were dried Lg
for 12 hours at about 100°¢ on 1}-inch plates, ashed at 500°
6: 3
(3 hours), slurried with alcohol and fixed to the plate with 0.5 :
7
per cent solution of formvar in ethylene dichloride, and then
counted.
as”
Continuous Monitoring of water:
A probe for continuously
{>
roa.