For your interest, the results of replys re: solutions used for 
peroxidase block:

27 replies

13 use 3% H2O2 in Water
9 use a commercial kit (5 of which were from Zymed)
5 use 3% H2o2 in Methanol; those who specified which all use 
AnalaR grade.

Thanks to all those who replied - it's always interesting to see how 
others out there in histoland do things!

Aidan.

___________________________________________________
a i d a n   c   s c h u r r 
     mlso,  histology department
      hutt valley health
       lower hutt, new zealand

     ph.  ++64 4 5709173
     fax  ++64 4 5709214
___________________________________________________