Estela Reinoso-Maset

Phone: 
2092284393
Education: 
1998 – 2004: Licenciatura en Ciencias Químicas - Química Analítica, Universidade de Vigo, Spain
01 - 07/2005: Erasmus Post-Graduate Exchange, University of Plymouth, UK
09/2006 - 11/2010: Ph.D. in Environmental Chemistry, University of Plymouth, UK
01/2011 - 01/2013: Post-Doctoral Research Fellowship, Commissariat à l’Energie Atomique, France
04/2013 – present: Post-Doctoral Research Scholar, University of California Merced, USA
Current Position: 
Postdoctoral Scholar
Research Interests: 

My research focuses on understanding the geochemical behavior of radionuclides and co-contaminants, produced either at the front or back end of the nuclear fuel cycle, mainly in subsurface environments. During my PhD project at the University of Plymouth (UK) I developed a mechanistic understanding of the interactions between anthropogenic complexing agents and radionuclides present in nuclear waste, aiming to understand their effect on radionuclide mobility in a natural sand system. Prior to my PhD, I spent 6 months studying the effect of these anthropogenic ligands on technetium mobility in a silty loam soil under anoxic conditions. In both projects I developed, optimized, and applied a wide range of analytical techniques to characterize the chemical speciation of these systems and their evolution over time, adsorption properties of the soils and the net effect of the ligands. The detailed investigation permitted to deduce the competitive interactions between radionuclides and matrix metals for both the ligands and sorption sites on the solid phase. The experience gained at the CEA (France) allowed me to expand my understanding of trace metal interactions with soils by focusing on clay minerals. During this postdoctoral project, I investigated the role of clay minerals at uranium mine sites and experimentally developed a thermodynamic database describing the sorption of uranium(VI) and radium(II) at trace levels onto kaolinite. During my last two years at UC Merced (USA), as well as applying my previous experience in batch experiments and solution phase analyses, I gained experience in flow-through column experiments and in solid phase characterization techniques (XRD, SEM, BET, SSA). I have also had the opportunity to conduct work at the Stanford Synchrotron Light Source. This allowed me to develop knowledge of X-ray absorption spectroscopy techniques (collecting and treating bulk XAS and elemental mapping data) to characterize solid phases containing U, Fe, S, Mn and Cd. 

Publications: 

Published

5. Reinoso-Maset E.*, Ly J. (2014) “Study of major ions sorption equilibria to characterize the ion exchange properties of kaolinite”, Journal of Chemical and Engineering Data, 59 (12), 4000-4009.
4. Reinoso-Maset E.*, Worsfold P.J., Keith-Roach M.J. (2013) “Effect of organic complexing agents on the interactions of U(VI), Sr(II) and Cs(I) with natural sand”, Chemosphere, 91(7), 948-954.
3. Reinoso-Maset E.*, Worsfold P.J., Keith-Roach M.J. (2012) “Evaluation of electrospray ionisation mass spectrometry as a technique for the investigation of competitive interactions: A case study of the ternary Th-Mn-EDTA system”, Rapid Communications in Mass Spectrometry, 26(23), 2755–2762.
2. Reinoso-Maset E.*, Worsfold P.J., Keith-Roach M.J. (2012) “The effect of EDTA, NTA and picolinic acid on Th(IV) mobility in a ternary system with natural sand”, Environmental Pollution, 162, 399–405.
1. Reinoso Maset E., Handley S., Fisher A., Heydon A., Worsfold P.J., Cartwright A.J., Keith-Roach M.J.* (2006), “The effect of organic co-contaminants on technetium and rhenium speciation and solubility under reducing conditions”, Environmental Science & Technology, 40(17), 5472-5477.
Conference Papers
3. Reinoso-Maset E.*, Hainos D., Ly J. (2012) “Sorption of uranium(VI) and radium(II) at trace level onto kaolinite and montmorillonite”, Mineralogical Magazine, 76(6), 2275.
2. Keith-Roach M.J.*, Reinoso-Maset E., May C.C., Young L., Worsfold P.J., (2011) “The influence of co-contaminant complexing agents on radionuclide environmental behaviour”, Mineralogical Magazine, 75(3), 1165.
1. Reinoso-Maset E.*, Worsfold P.J., Keith-Roach M.J. (2008) “Radionuclides, organic complexing agents and solid phases: Exploring their interactions” Geochimica et Cosmochimica Acta, 72 (12 Suplement), 785.