Rapid Method for the Analysis of Plutonium Isotopes in a Soil Sample within 60 min

240Pu/239Pu and 242Pu/239Pu atom ratios of Japanese monthly atmospheric deposition samples during 1963–1966

“…We followed previously established methods 43 for the decomposition of atmospheric deposition samples and chemical separation of Pu. Briefly, a 1-g aliquot of sample was fused with a mixture of bicarbonate salts and boric acid using a bead sampler (TK-4100, Tokyo Kagaku Co. Ltd., Japan) at 1200 °C for 7 min.…”

Automated flow injection system using extractionchromatography for the determination of plutonium in urine by inductively coupled plasma mass spectrometry

“…Their approach involves the automation of the separation procedure by a flow injection unit. While such an approach has been used in the past for the pre-concentration and separation of 239 Pu in various matrices such as soil and sediment, [34][35][36][37] sea-water, 38 nuclear related materials, [39][40][41] vegetation 42 and biological tissues, 37 it was the first time that it had been applied to urine. The automation of the pre-concentration system presented by Epov et al 31 performs the pre-concentration, separation and detection of 239 Pu in urine in less than 11 min with a LOD of 4.3 mBq L À1 .…”

Inventories of 239+240Pu, 137Cs, and excess 210Pb in sediments from freshwater and brackish lakes in Rokkasho, Japan, adjacent to a spent nuclear fuel reprocessing plant

“…Pu in the solution was separated by using extraction resin (UTEVA resin, Eichom Inc., US). Details of this separation procedure were reported elsewhere by Ohtsuka et al (2005Ohtsuka et al ( , 2006. 239 Pu and 240 Pu in the sample was measured by a quadrupole-type ICP-MS (PQ-Excel-s, VG Elemental, UK) with an ultrasonic nebulizer.…”