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Analytical and Bioanalytical Chemistry

, Volume 411, Issue 5, pp 973–983 | Cite as

Determination of 107Pd in Pd purified by selective precipitation from spent nuclear fuel by laser ablation ICP-MS

  • Shiho AsaiEmail author
  • Masaki Ohata
  • Takumi Yomogida
  • Morihisa Saeki
  • Hironori Ohba
  • Yukiko Hanzawa
  • Takuma Horita
  • Yoshihiro Kitatsuji
Paper in Forefront

Abstract

Determination of radiopalladium 107Pd is required to ensure radiation safety of the Pd extracted from spent nuclear fuel for recycling or disposal. We employed nanosecond laser ablation inductively coupled plasma quadrupole mass spectrometry (ns-LA-ICP-QMS) to simplify the analytical procedure of 107Pd. Pd was separated through a selective Pd precipitation reaction induced by pulsed laser irradiation that reduces Pd(II) ions to metal Pd(0). Laser ablation facilitates direct measurement of the Pd precipitates, skipping the dissolution and dilution procedure with aqua regia and HCl, which causes serious corrosion damage to the introduction system of the ICP. In the present study, 102Pd in natural Pd standard solution was used as an internal standard owing to its absence in spent nuclear fuel. Pd precipitates with diameters ranging from 0.2 to 0.5 μm, obtained by pulsed laser irradiation, were embedded uniformly on the surface of the centrifugal filter to form a microscopically thin and flat Pd surface. The resulting homogeneous Pd layer is suitable for obtaining a stable signal ratio of 107Pd/102Pd (< 4%, 2RSD). The mass bias-corrected ratio of 107Pd/102Pd and the amount of 107Pd were 0.163 ± 0.004 and 17.8 ± 0.6 ng, respectively, which correspond to the values obtained by solution nebulization measurement after the dissolution of identical Pd precipitates.

Graphical abstract

Keywords

107Pd Spent nuclear fuel Laser ablation ICP-MS Laser-induced photoreduction Precipitation Nanoparticles 

Notes

Acknowledgements

The authors are grateful to Mr. Nobuaki Kohno of Radiation Application Development Association (RADA) for insightful comments on this work.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

216_2018_1527_MOESM1_ESM.pdf (108 kb)
ESM 1 (PDF 107 kb)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Nuclear Science and Engineering CenterJapan Atomic Energy Agency (JAEA)Naka-gunJapan
  2. 2.National Metrology Institute of Japan (NMIJ)National Institute of Advanced Industrial Science and Technology (AIST)TsukubaJapan
  3. 3.Quantum Beam Science Research DirectorateNational Institutes for Quantum and Radiological Science and Technology (QST)ChibaJapan

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