ne all
12
17.
CRER-1068
Heat in boiling water bath for five minutes.
Add three
drops of saturated sodium carbonate solution, and continue
heating for five minutes.
(Heating causes sufficient
mixing to ensure complete precipitation).
18.
Centrifuge and discard supernatant Liquid.
19.
Wash precipitate twice with 1 ml of water, and twice with
1 ml of ethanol’.
20.
Suspend precipitate in three drops of ethanol and pipette
onto a tared counting tray.
Dry under infra-red lamp and
weigh as strontgum carbonate to determine chemical yield of
strontium.
Z
Count
oa ee me oe ne Oe en
el.