I use 3% H2O2.  Beware that the H2O2 you can buy (at least here in the
states) at the drug store is also 3%, but I don't use this as I've heard it
isn't all that pure.  I prepare it from concentrated 30% reagent grade H2O2.  

Connie M

At 01:20 AM 06/23/2000 +1000, Bruce Abaloz wrote:
>Hi Histonetters, My name is Gratiana & I'm a PhD student @ The Uni. of
Melbourne Australia. My question is what % of methanol that normally used
to dilute Hydrogen peroxidase for Hydrogen peroxide quenching in
immunohistochemistry.  Thankyou very much for your suggestion.
>Regard
>Gratiana
>
>
>BRUCE ABALOZ
>HISTOLOGIST		      
>DEPARTMENT of ZOOLOGY	           *  ph:    +61 3 93446282
>The UNIVERSITY of MELBOURNE        *  fax:   +61 3 93447909 
>Parkville, Victoria.3052           *  email:
b.abaloz@zoology.unimelb.edu.au
                          
>AUSTRALIA.
>          OPEN THE MIND;STRENGHTHEN THE BODY;FORTIFY THE SPIRIT!!
       
>                    DANCE, LIKE NO - ONE'S WATCHING!!
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Connie McManus
Veterinary Diagnostics Lab
Utah State University
Logan, UT
USA