4.2
Analytical Procedure for the Acid Extraction and Analysis of
trontium-90 in Soil (14)
Carrier Solutions
Strontium carrier
-
20 mg Sr/ml
Yttrium carrier
-
20 mg ¥/mi‘29)
Barium carrier
- 20 mg Be/ml
Apparatus
A detailed dJezcription of the apparatus employed in this
procedure can be found in NYO-4700 ~- Manual of Standard Procedures.
CONVENTIONS
le
The commerciai concentrated acids and ammonium hydroxide are
indicated by the chanical symbol only.
2.
Dilvted scids are given as parts of acid to be added to parts of
6
\N
distilica water o> in some cases the normalities are given.
All concentrations of dilutions axe approximate, unless stated as
exact ox that prejaration or dilution in a volumetric flask is
required.
k,
Wide wang pH pepe? may be used for obtaining pH indicated, unless
measurenant with narrow range paper or a pH meter is specifically
mentioned.
(14) Modification of the procedure presented in NYO-4700 - Manual of
(25)
Stendard Procedures,
Some yttrium sslts may be contaminated with thorium.
A detailed
procedure for “us purification c? the yttrium carrier solution by
Solvent extyacticn is given in l"o-700 - Manual of Stendard
Procedures.
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“SAYS
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