Re: buffer preservative ?


years ago we used to add a tiny amount of sodium azide to our diluent, but you have to be careful as it can inhibit ihc reactions.  i will try and find the concentration used.
patsy ruegg

Laura Bliven wrote:

> I would like to add a preservative to our Tris Buffered Saline Buffer, pH 7.6, but am unsure as to what chemical and how much.  The staining will be immunohistochemistries and I know some chemicals are incompatible.
> Thanks,
> Laura

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