U. Nygren, Determination of Sr-90 in soil and sediment using lithium-berate fusion and extraction chromatography, J RAD NUCL, 241(3), 1999, pp. 549-551
A rapid and reliable method for determination of Sr-90 in soil and sediment
has been developed. The method is based on lithium-berate fusion and extra
ction chromatography with a Sr-resin. The samples can be dissolved and sepa
rated for Sr in approximately 5 hours of which the fusion and dissolution r
equires 20 minutes. The method has been applied to four reference materials
, two soils and two sediments, and the results agree well with the recommen
ded values. The mean recovery of Sr was 71%.