[Histonet] Re: Hematoxylin

Tony Henwood AnthonyH <@t> chw.edu.au
Thu Jan 29 17:01:02 CST 2004


Good point re the naming of iodate oxidised Harris Haematoxylins. Any idea
for a more appropriate name?

How about "HENWOOD'S Haematoxylin" ????? (Hee Hee !!!!)

Tony Henwood JP, BAppSc, GradDipSysAnalys, CT(ASC)
Laboratory Manager
The Children's Hospital at  Westmead,
Locked Bag 4001, Westmead, 2145, AUSTRALIA.
Tel: 612 9845 3306
Fax: 612 9845 3318


-----Original Message-----
From: RSRICHMOND <@t> aol.com [mailto:RSRICHMOND <@t> aol.com]
Sent: Friday, 30 January 2004 6:20 AM
To: histonet <@t> lists.utsouthwestern.edu
Subject: [Histonet] Re: Hematoxylin

Mark Lewis, Product Specialist, Anatomical Pathology, Clinical Diagnostics, Thermo Electron Corporation asks us:

>>I'm taking a survey to find out which type of Hematoxylin is most commonly

used in Histology and Cytology labs.<<

And Gary Gill responds: >>I recommend Gill's for everything.  ;-)

The Gill hematoxylins are iodate-oxidized (Mayer) hematoxylins. I believe - please comment on this, Gary - that the term "Gill hematoxylin" is
and cannot be used without Gary Gill's permission.

The term "Harris hematoxylin" is correctly applied only to hematoxylins 
oxidized with mercuric oxide. Since mercury is a hazmat that (usually) is
permitted in present-day histology labs, the term "Harris hematoxylin" has
come to 
mean any alum hematoxylin that the Marketing Department decides to call
hematoxylin. This usage is deplorable. Iodate-oxidized hematoxylins should not be called Harris hematoxylin.

Bob Richmond
still the Samurai Pathologist
Gastonia NC
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