I check pH every time I make a new batch(bottle) and then periodically there
after.
Timothy N. Higgins, HT (ASCP), QIHC
> Message: 10
> Date: Tue, 11 Feb 2014 16:23:22 +0000
> From: "Gupta, Nilesh" <ngup...@hfhs.org>
> Subject: [Histonet] Buffer pH monitoring
> To: "'histonet@lists.utsouthwestern.edu'"
> <histonet@lists.utsouthwestern.edu>
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> I just want to get an idea of how often labs monitor the pH of the buffers
> used in IHC labs. Do you pH for every bottleof a lot received prior to use,
> single bottle of a lot only or do you have to pH every time you reconstitute
> the buffer.
>
> It is a CAP checklist question for AP & here is how the checklist question is
> worded. It says when a new "batch" is prepared or received. Any input is
> greatly appreciated. Thanks Nilesh Gupta, M.D, Henry Ford Hospital, Detroit,
> MI
>
> The pH of the buffers used in immunohistochemistry is routinely monitored.
>
> NOTE: pH must be tested when a new batch is prepared or received.
>
> Evidence of Compliance:
>
> ✓ Written procedure defining pH range for each buffer in use AND
>
> ✓ Records of initial and subsequent QC on each buffer
>
>
>
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