| From: | Tony Henwood |
John,
This is from our waste manual:
Quality Control of Recycled Solutions
Xylene
1. Xylene Solubility of Wax (1)
1. Take 1 gram of wax and mix in 20ml of xylene
2. Record time for full dissolution
3. Check for any undissolved residues and contaminants
2. Xylene miscibility
Take 20ml of xylene and add 20ml alcohol, recording the appearance of the solution
Reference:
1. Massey, J., (1993) "Quality control for tissue processing" Lark News 1(3):6-7.
This doesn't actually test the purity of the xylene, but it does give some confidence in the use of the xylene for routine Histo use.
Hope this helps,
Tony Henwood JP, BappSc, GradDipSysAnalys, CT(ASC)
Laboratory Manager
The Children's Hospital at Westmead,
Locked Bag 4001, Westmead, 2145, AUSTRALIA.
Tel: (02) 9845 3306
Fax: (02) 9845 3318
http://www.histosearch.com/homepages/TonyHenwood/default.html
http://us.geocities.com/tonyhenwoodau/index.html
-----Original Message-----
From: John Spair [mailto:John.Spair@multicare.org]
Sent: Saturday, 15 June 2002 6:38
To: 'histonet@pathology.swmed.edu'
Subject: Alcohol and Xylene Recycling
I know many people are using stills these days to recycle alcohol and
xylene. It's easy to check the alcohol with a hydrometer to determine
percent of the distilled product, but has anyone come up with a method of
checking the xylene for purity without having to send it somewhere for
analysis??? Thank you
John Spair, System Manager
Pathology Services
LABORATORIES Northwest
MultiCare Health System
john.spair@multicare.org
253-403-6090
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