This may sound simplistic, but it works for us: whenever I need to use pH
something, I quickly first dunk the electrode in the buffers above & below
what I'm pHing (rinsing after each dunk, of course)--if the meter reads
accurately I proceed to measure, if it's off by more than a few % I
recalibrate before measuring. It's true that a new electrode can stay
well calibrated for long periods. Susan
----- Original Message -----
From: "Jan Shivers" <shive...@umn.edu>
To: "histonet" <histonet@lists.utsouthwestern.edu>; "Akemi Allison"
<akemiat3...@yahoo.com>
Sent: Tuesday, February 01, 2011 1:36 PM
Subject: Re: [Histonet] calibration of pH meter
We calibrate our pH meter every day that it's used, which can be daily
during heavy workload weeks, using multiple calibration buffers.
Jan Shivers
UMN Vet Diag Lab
----- Original Message -----
From: "Akemi Allison" <akemiat3...@yahoo.com>
To: "histonet" <histonet@lists.utsouthwestern.edu>
Sent: Tuesday, February 01, 2011 7:54 AM
Subject: [Histonet] calibration of pH meter
Good morning everyone,
I am curious how frequently you all calibrate your pH meter,
particularly when you make up solutions for muscle bx's? Do you do it
daily, weekly, or monthly? I am trying to come up with an acceptable
standard in a clinical histology lab, verses a biotech lab, which
makes-up large quantities of reagents on a daily basis.
Thank you in advance for your information,
Akemi
Akemi Allison BS, HT (ASCP) HTL
Director
Phoenix Lab Consulting
Tele: 408.335.9994
E-Mail: akemiat3...@yahoo.com
_______________________________________________
Histonet mailing list
Histonet@lists.utsouthwestern.edu
http://lists.utsouthwestern.edu/mailman/listinfo/histonet
_______________________________________________
Histonet mailing list
Histonet@lists.utsouthwestern.edu
http://lists.utsouthwestern.edu/mailman/listinfo/histonet
_______________________________________________
Histonet mailing list
Histonet@lists.utsouthwestern.edu
http://lists.utsouthwestern.edu/mailman/listinfo/histonet
