SV: [ RadSafe ] Depleted Uranium Found In Urine 20 Years Later

Otto G. Raabe ograabe at
Thu Nov 1 10:58:04 CDT 2007

At 10:26 PM 10/30/2007, Olsson Mattias :MSO wrote:
>That comment about the "old-fashioned" alpha sceptroscopy was weird.
November 1, 2007

My experience with measuring plutonium 239 in urine was highlighted 
by the difficulty of accurately measuring small concentrations using 
complex chemical separations, isotopic tracers, often inefficient 
electro-deposition, and hours of counting based on alpha particle 
spectra.  I believe the mass spectrometric methodology is much more 
accurate and the choice of preference for future work.


Prof. Otto G. Raabe, Ph.D., CHP
Center for Health & the Environment
University of California
One Shields Avenue
Davis, CA 95616
E-Mail: ograabe at
Phone: (530) 752-7754   FAX: (530) 758-6140

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