Rapid determination of actinides and 90Sr in river water

Development of a single method for direct measurement of multiple radionuclides using ICP-MS/MS

“…Plutonium-239 has been extensively measured by ICP-MS, oen in combination with 240 Pu to determine the source of nuclear contamination through the difference in 239 Pu/ 240 Pu isotopic ratio values. [54][55][56] The ICP-MS/MS setup has been shown to reduce the reliance on offline chemical separation from 238 U, which otherwise interferes via tailing and formation of polyatomic 238 U 1 H. 12,13 The Agilent 8800 used in this study has a maximum m/z value of 260, limiting the number of cell products that can be formed in NH 3 and O 2 mode. Recently developed ICP-MS/MS instruments can measure at higher m/z values, and this has been shown to be benecial for actinide measurement and separation through double oxide formation.…”

Plasma source mass spectrometry for radioactive waste characterisation in support of nuclear decommissioning: a review

“…The main Cm isotopes produced in nuclear reactors are 242 Cm (t 1/2 ¼ 162.9 days), 243 Cm (t 1/2 ¼ 28.9 years), 244 Cm (t 1/2 ¼ 18.2 years), 245 Cm (t 1/2 ¼ 8480 years), 246 Cm (t 1/2 ¼ 4760 years) and 248 Cm (t 1/2 ¼ 3.48 Â 10 5 years). For Cf, the main isotopes are 249 Cf (t 1/2 ¼ 351 years), 250 Cf (t 1/2 ¼ 13.1 years), 251 Cf (t 1/2 ¼ 898 years) and 252 Cf (t 1/2 ¼ 2.6 years). To date, there are no reported applications of ICP-MS for Cm or Cf measurement in nuclear wastes.…”

“…311 Sample introduction was via a quartz Peltier-cooled impact bead spray chamber (natural aspiration) and micro concentric nebulizer. Two peak jump routines were employed to separately measure high abundance ( 248 Cm/ 246 Cm) and low abundance ( 245 Cm/ 246 Cm, 247 Cm/ 246 Cm, 249 (Bk + Cf)/ 251 Cf, 250 Cf/ 251 Cf, and 252 Cf/ 251 Cf) isotope ratios. High precision isotope ratio measurement was achieved using corrected peak centering (3 points per peak with the central point associated with the maximum count rate).…”

Coupling between a calix[6]arene-based chromatography column and ICP-MS for on-line actinide analysis

“…This lack of sensitivity for shorter half-life isotopes can be partially overcome by performing a separation or a preconcentration step prior to ICP-MS analysis to lower the detection limits. [13][14][15] Later on, on-line analyses by coupling liquid chromatography and ICP-MS techniques appeared in the late 1980's showing detection limits lowered 5 to 7 times compared to off-line analyses of elution fraction for transition metals and uranium. 16 Flow injection (FI) systems performing on-line separation of actinides before ICP-MS measurements have thus been developed.…”