Developing more efficient ICP-MS/MS-based methodologies for the analysis of key radionuclides in complex marine sample

Expansion of the nuclear energy capacity is key to achieve UK’s sustainability objective of zero-carbon energy production. In parallel to this development, it is critical to have reliable, fast and cost-effective technologies that allow for monitoring of the accidental release of radioisotopes. These technologies will not only generate critical data on the operation of nuclear facilities, safeguarding the UK’s population and natural environment, but also will provide information to the scientific community to understand the biogeochemical cycles of radionuclides.

The use of tandem mass-spectrometry techniques, such as ICP-MS/MS (inductively coupled plasma mass-spectrometry) presents significant advantages in terms of speed of analysis, which makes them ideal for environmental monitoring, in comparison with conventional radiochemical analyses. However, the generalised application of mass-spectrometry-based methods is hindered by the lack of robust methods for preparation of complex environmental samples and the absence of certified materials for validation.

This project aims to fill these gaps, with the development of analytical methodologies for the determination of key radionuclides, namely 135-caesium, 226-radium and 99-technetium in complex samples (sediments and marine organisms) by ICP-MS/MS. The supervisory team gathers experts from the University of Surrey, NPL and CEFAS with the objectives of; optimising the samples extraction and purification for the removal of interferent species; optimising the use of tandem mass spectrometry for the accurate the radionuclide measurement and finally, working towards the development of inter- and intra-laboratory comparison protocols and production of a certified material for validation of the analyses.

We are looking for candidates with a BSc or Master Degree in Chemistry, Physics or Environmental Sciences, and with a strong interest in developing a career in analytical chemistry or radiochemistry. Applicants should have excellent practical skills in the laboratory, ideally with previous experience in atomic spectroscopy techniques and sample preparation. The candidates will need to meet the minimum entry requirements for our PhD programme.

Open to candidates who pay UK/home rate fees. See UKCISA for further information.