Vernon,
I have been successful with  a biotinylation kit from Biocare Medical.
It uses a  different chemistry  than the Vector kits.
I think the mopping reagent may be what makes the difference.
Their number is 800 799 9499 ask for Hari, he's the technical sales
manager.


Becky Orr, CLA HT (ASCP)
IHC Lead
Evanston Northwestern Healthcare
ph: 847-570-2771




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