Cadmium reacts with the aurine tricarboxilic acid (Aluminon) procedure. A 
0.5% sodium rhodizonate solution at pH 2.8 yields a brown-red precipitate 
with cadmium and should yield violet with tin (Lillie & Fullmer). There may 
be other staining methods for Cadmium from Japanese literature. It is an 
environmental problem there and has led to a debilitating bone disease 
called Itai Itai.

Bert Dotson

-----Original Message-----
From:	Ms. Evelyn Kaplan [SMTP:ekaplan@squ.edu.om]
Sent:	Wednesday, February 27, 2002 5:28 AM
To:	Histonet
Subject:	methods for cadmium and tin

We have recently been examining tissue and found high levels of these two 
metals via chemical analysis. I wonder if anyone has methods to demonstrate 
either tin or cadmium in tissue.  They are FFPE samples.
Any help will be gratefully received.

Evelyn Kaplan
Dept of Pathology
Sultan Qaboos University
Oman
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