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PhD thesis


Investigation of Uranium Binding Forms in Relevant Environmental Waters and Bio-fluids

Laboratory Osman

PhD student:
Alfatih A. A. Osman
Supervisors:
Prof. Dr. G. Bernhard, Dr. G. Geipel (HZDR)
Division:
Biogeochemistry
Period:
04/2011–04/2013


Aims:

  • To investigate the complexation of uranium with some single bioligands, viz., urea, uric acid, folic acid and riboflavin, which commonly present in biological fluids or in bio-system.
  • To find out the uranium speciation in natural mineral waters and in relevant simulated bio-fluids, like saliva, sweat, and urine.
  • To compare the calculated thermodynamic data of uranium binding form based on newest data compilations with the data obtained from spectroscopic measurements of the simulated and original bio-fluids.

Technical bases:

  • Laser spectroscopy at low temperatures (cryo-TRLFS) is dedicated for uranium speciation in natural waters and in bio-fluids
  • Room temperature TRLFS and femto second laser (fs-TRLFS) are used for complex formation studies
  • TRLFS at room and elevated temperatures is dedicated for measuring temperature dependent thermodynamic data

This research is funded by the German Academic Exchange Service (DAAD).


Contact

Alfatih Ahmed Alamin Osman
Biogeochemistry