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 President Excalibur Pathology 631 N Broadway Moore, OK 73160 405-759-3953 Lab 405-759-7513 Fax www.excaliburpathology.com ________________________________ From: kristen arvidson <arvidsonkris...@yahoo.com> To: histonet <histonet@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. _______________________________________________ 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