S-35 in urine, liq. scnit sample

["Les Slaback, Health Physics" <SLABACK@micf.nist.gov>]

Don't have any suggestions for suppressing possible chemiluminescence.  But..
 1. Using a liq.scint unit that can display the spectrum provides good
visual confirmation.  But if it is only slightly above background...
 2. suggest doing a count on a low background proportional counter.  While
not convenient for routine urinalysis counting these certainly can see S35
betas, and have better sensitivity than liq.scint.

 3. Also can try cooling the sample.

SLABACK@MICF.NIST.GOV
   ...a little risk, like a bit of spice, adds flavor to life