[Histonet] Contamination on Processor

Paula Pierce contact <@t> excaliburpathology.com
Mon Mar 15 12:34:02 CDT 2010

Are you mixing NBF and zinc formalin fixed tissue on the same processor? The phosphates in NBF will cause a zinc oxide precipitate.

Paula Pierce, BA, HTL(ASCP)HT
Excalibur Pathology
631 N Broadway
Moore, OK 73160
405-759-3953 Lab
405-759-7513 Fax

From: kristen arvidson <arvidsonkristen <@t> yahoo.com>
To: histonet <histonet <@t> lists.utsouthwestern.edu>
Sent: Mon, March 15, 2010 12:06:04 PM
Subject: [Histonet] Contamination on Processor

We are experiencing cloudiness in all of our alcohols on our processor.  We test them before we dump them by mixing them with water and they cloud up.  To me this says there is some clear-rite/xylene (we use both on our processors) getting in them somehow.  I was wondering if anyone else has experienced this or if there is a possibility it could be some other contaminant or is the cloudiness normal after so many processing runs.  We have newer processors, leica asp300s.  Any help would be so much appreciated.  thank you.

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