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Determination of Transuranium Isotopes (Pu, Np, Am) by Radiometric Techniques: A Review of Analytical Methodology

“…Cation exchangers have been used to preconcentrate Am. Lee et al used cation column to separate Am from interfering Ca, Mg, etc. to determine Sr and actinides in bioassay samples.…”

“…Because of the high selectivity of the resin for Pu(IV), very often a single chromatographic separation provides sufficient purity for the analysis. Basically the same procedure was already used in the 1960s, e.g., by Morrow (ref 293 in ref ), Hart (ref 167 in ref ), Campbell et al (ref 74 in ref ), and has been used by many authors recently, e.g., Moreno et al, Qu et al, Pilviö, Michel et al, , Komosa et al, Solatie et al, , Hrnecek et al, , Viogue et al, Berlioz et al, LaRosa et al, Ageyev et al, , Giardina et al, Lee, Jakopic et al, and Michel et al Anion exchange procedures for Pu separation have received wide application not only in α spectrometry but in ICPMS methods (see in the monograph of Kim et al).…”

“…Cation exchange separation of Am has also been combined with the separation of Pu. Agayev et al , and Lee et al used anion exchange resins to remove Pu followed by the separation of Am on a cation exchange resin column. In the previous procedure, recoveries of 60–80 and 54–68% were reported for Pu and Am, respectively, when 100–200 g soil samples were analyzed.…”

Analytical Methods for the Determination of 90Sr and 239,240Pu in Environmental Samples

“…It is necessary to use chemical methods for separation and purification to remove matrix elements and interfering nuclides. There are many chemical separation methods suitable for Sr and Pu, including precipitation, solvent extraction, ion-exchange chromatography, extraction chromatography, or a combination of these methods [ 36 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ]. We mainly focus on the ability of various methods to remove elements that interfere with the analysis of 239 Pu, 240 Pu, and 90 Sr.…”