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Method for Ultratrace Level 241Am Determination in Large Soil Samples by Sector Field-Inductively Coupled Plasma Mass Spectrometry: With Emphasis on the Removal of Spectral Interferences and Matrix Effect

“…Compared to the lowest LOD based on ICPMS measurement reported by Zheng and Yamada (0.041 mBq g –1 ), we improved the LOD by a factor of 3 because of the improved sensitivity of the analytical system. This LOD was also lower than those of α spectrometry reported by Pimpl and Higgy (0.03 mBq g –1 ) and by Jia et al (0.034 mBq g –1 ). On the basis of the excellent features (low LOD, stable and high recovery, high DF of interfering elements, and effective matrix effect removal), this method is suitable for analysis of ultratrace level 241 Am in large soil samples.…”

Rapid method for plutonium-241 determination in soil samples

“…There are many commonly known extracting agents for the extraction of heavy metal traces, such as: trioctylphosphine oxide, TOPO [5–7], bis-(2-ethylhexyl) phosphoric acid, HDEHP [8, 9], methyltrioctylammonium chloride (Aliquat 336) [10, 11], N,N -diethyldodecanamide, DEDA [12] or thenoyltrifluoracetone, HTTA [13]. These compounds have been tested to find those of high plutonium recovery from the environmental samples.…”

Cesium, americium and plutonium isotopes in ground level air of vilnius

“…The radiochemical analyses were performed on monthly (total volume ~2.0 × 10 6 m 3 ) samples of aerosol ashes (about 30 g). For separation of Pu isotopes the TOPO/cyclohexane extraction and radiochemical purification using UTEVA resin were used [4], Am was separated after TOPO/cyclohexane extraction using TRU and TEVA resins (100-150 µm) [5]. Some separations of Pu isotopes from the samples were performed using the AG1-4 anion exchange resin (100-200 mesh).…”