Hi Allan, The flakes are alum precipitates.
I would suggest filtering the haematoxylin before use. Regards Tony Henwood JP, MSc, BAppSc, GradDipSysAnalys, CT(ASC), FFSc(RCPA) Principal Scientist, the Children's Hospital at Westmead Adjunct Fellow, School of Medicine, University of Western Sydney Tel: 612 9845 3306 Fax: 612 9845 3318 Pathology Department the children's hospital at westmead Cnr Hawkesbury Road and Hainsworth Street, Westmead Locked Bag 4001, Westmead NSW 2145, AUSTRALIA -----Original Message----- From: Allan Wang via Histonet [mailto:histonet@lists.utsouthwestern.edu] Sent: Wednesday, 4 January 2017 4:45 PM To: histonet@lists.utsouthwestern.edu Subject: [Histonet] Dirty H&E after break Hello all, Does someone know what would cause dirty flakes of light purple that showed across the whole slide? http://i.imgur.com/1nIXwAy.jpg Reagents are relatively fresh but the H&E stainer hadn't been used for a week over the holiday break. Is it surface film on the hematoxylin? I didn't notice anything in the container. We are using Mayer's, followed by differentiation with HCl acid alcohol, with 2-3 minute long wash steps in between. Thanks, Allan _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet This message is intended for the addressee named and may contain confidential information. If you are not the intended recipient, please delete it and notify the sender. Views expressed in this message are those of the individual sender, and are not necessarily the views of NSW Health or any of its entities. _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet
