Sequential isotopic determination of plutonium, thorium, americium, strontium and uranium in environmental and bioassay samples

Rapid separation method for 237Np and Pu isotopes in large soil samples

“…This may have resulted from the use of only 1 ml of TRU Resin to recover all the actinides from the soil sample, even though the soil aliquot was only 0.5 g. Wang et al (2004) reported a sequential method to determine actinides and strontium in soil samples. The samples were digested in nitric acid and hydrogen peroxide, and redissolved in a large volume of 3M nitric acid.…”

Rapid separation method for actinides in emergency air filter samples

“…There are a number of 3 analytical methods reported that use ion exchange/extraction chromatography plus alpha spectrometry to determine actinides in soil. Wang et al reported a sequential method to determine actinides and strontium in environmental samples [4]. The samples were digested in nitric acid and hydrogen peroxide, and redissolved in a large volume of 3M nitric acid.…”

“…A large number of sequential steps were required, but the accuracy of the actinide and strontium results versus the NIST reference values was very good. 4 interested in leachable plutonium so less rigorous acid leach was used. Refractory particles that could be present from a RDD (Radiological Dispersive Device) would not likely be digested using this method in an emergency.…”

Rapid separation method for actinides in emergency soil samples

“…Wang et al reported a sequential method to determine actinides and strontium in soil samples [6]. The samples were digested in nitric acid and hydrogen peroxide, and redissolved in a large volume of 3M nitric acid.…”