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

Olsson Mattias :MSO mso at
Wed Oct 31 01:26:07 CDT 2007

That comment about the "old-fashioned" alpha sceptroscopy was weird.
Disregarding the VAST dependence on the half-life of the nuclide. A more
sensitive MS should move the limit for when the MS is a better choice
(towards shorter half-lives) but that comment smells more to me like
arguments such as "wind power is better than old-fashioned nuclear".

/Mattias Olsson, Sweden

-----Ursprungligt meddelande-----

At 10:59 PM 10/28/2007, Roger Helbig wrote:
>I rather wonder if the test proves that DU is there or that uranium
>is there -- I have asked Dr Parrish what steps he has taken to 
>preclude natural uranium being reported as being DU.  The "aerosol" 
>comment makes it sound like Parrish was not particularly unbiased 
>when he began this testing.
October 29, 2007

The sector field - inductively coupled plasma - mass spectrometry 
(SF-ICP-MS) and multiple collector - inductively coupled plasma - 
mass spectrometry (MC-ICP-MS) can provide incredibly accurate 
measurements of all uranium isotopes in urine including U-234, U-235, 
U-236, U-238. [I think that this method has also been applied to to 
plutonium isotopes, and it is far more accurate and precise that 
old-fashioned alpha particle energy spectra counting.]


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