re: urine bioassays

["Susie Richards" <SRICHARDS@healthsafe.uab.edu>]

>>We recently performed a urine bioassay screen for an individual who 
had used S-35.  The initial results indicated some activity in urine.  
Subsequent urine samples from the same individual were negative, thus we 
suspected chemoluminescence.  The usual methods to eliminate 
chemoluminescence (e.g. store sample in dark, refrigerate, etc.) failed 
to eliminate problem.  The sample in question was

>>>>The chemiluminescence may be due to vitamin supplements.<<<<

We have noticed chemiluminescence 7-10 days before and after a woman's 
menses (and during).  Unfortunately, we have not found a way to get rid 
of it.  We just sample again later. 

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Susan R. Richards                        
University of Alabama at Birmingham      
933 South 19th Street, Suite 445          
Birmingham, Alabama  35294-2041         
srichards@healthsafe.uab.edu