Research project: Advancing low level radionuclide analysis using HR-Sector Field ICP-MS: bioassay applications
Currently Active:
Yes
Uranium originates naturally from the environment, and has existed since the formation of the earth. Anthropogenic uranium, and plutonium have been deposited across the globe through nuclear weapons testing, nuclear power etc. As we exploit the properties of U and Pu, those with the potential for occupational exposure to these materials receive routine monitoring. This involves analysis of urine and faecal samples to determine if a radiation dose has been received.
Project Overview
Argonne National Laboratory
As the potential for exposure is low, most samples will only represent the background U and Pu. This means a highly sensitive method for their determination is required. Current methods are lengthy and therefore time consuming. A method for the rapid determination of U and Pu in urine is in development.
High Resolution ICP-MS
Method Development
Once the elements U and Pu have been isolated from the sample, they are traditionally measured using alpha spectrometry. This new method will exploit the use of two high resolution ICP-MS instruments; Neptune and Element, to reach significantly lower detection limits, with a greatly reduced measurement time (3-7 days for alpha spectrometry, minutes for ICP-MS)
Aims
1.Develop a rapid method for the simultaneous determination of uranium and plutonium 2.Achieve substantially quicker turnaround from sample to measurement than capable with alpha spectrometry 3.Achieve considerably lower detection limits than achievable with alpha spectrometry
Natural uranium found in urine
Funding
This project is funded through an AWE Outreach Award to the GAU-Radioanalytical Group (Geosciences Advisory Unit)
