Storage of tissue in alcohol won't affect the presence or reactivity of
aluminum.  Formalin should not have a deleterious effect either, if it is
properly buffered.  I believe long-term storage in acidic formalin (or any
acidic solution) might dissolve aluminum out of tissue, though I don't have
any reference or direct experience to corroborate this.

> ----------
> From: 	histonet-bounces@lists.utsouthwestern.edu on behalf of Lina
> Vieira
> Sent: 	Thursday, March 30, 2006 11:11 AM
> To: 	Histonet
> Subject: 	[Histonet] Aluminium localization
> 
> In return to the Aluminium localization, 
> I would now if an excessive time of fixation (in formaldeide), or an
> excessive time of etanol 70% imersion (for example 4 days)can induce false
> negative results to the aluminum? 
> 
> 
> Thanks in advance for any information you can provide,
> 
> Lina Vieira
> University of Algarve
> Portugal
> 
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