Staining for argyria?

From:

"David A. Reynolds"

Hello all,
I am in search of a stain to demonstrate argyria. Apparently there is an increase in use of silver-containing "natural" remedies for those who self-medicate for Lyme disease and other ailments. The archives produced a reference for Timm's method, but I cannot locate a variation of this procedure to demonstrate silver.
Anyone have an idea?
Thanks in advance
Dave Reynolds
University of Washington Medical Center
Seattle, WA