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Updated: May 22, 2026

Speciation and Bioavailability Measurements of Environmental Plutonium Using Diffusion in Thin Films
Published on: November 9, 2015
Determination of ²³⁷Np in environmental and nuclear samples: a review of the analytical method
1Carlsbad Environmental Monitoring & Research Center, Radiochemistry, 1400 University Drive, Carlsbad, NM-88220, USA. pthakur@cemrc.org
Abstract:
A number of analytical methods has been developed and used for the determination of neptunium in environmental and nuclear fuel samples using alpha, ICP-MS spectrometry, and other analytical techniques. This review summarizes and discusses development of the radiochemical procedures for separation of neptunium (Np), since the beginning of the nuclear industry, followed by a more detailed discussion on recent trends in the separation of neptunium. This article also highlights the progress in analytical methods and issues associated with the determination of neptunium in environmental samples.
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