[Celegans] Platinum wire info

Politz, Samuel M spolitz at WPI.EDU
Mon Aug 15 14:27:57 EST 2005


Thanks to all who replied to my post of 8/10/05 requesting info on where to
buy platinum wire for worm picks.  Most people said they use 32 ga, 99.95%.
I checked back and my memory was wrong-- I have been using 32 ga all along,
not 28 ga like I said in my previous post.  Here is the pertinent info:

Fisher was the supplier mentioned most often.  99.95%, 32 ga platinum wire
from Fisher, # 13-766-10B.  It may be on backorder at present.  Fisher also
has platinum wire from 20 to 36 ga.  

Other suppliers mentioned were:

http://www.sciencekit.com/category.asp_Q_c_E_436003 
http://umetals.com/proddetail.php?prod=14142&PHPSESSID=04409384a521eb86e0dd3b
3196946d95 
http://www.alfa.com/CGI-BIN/LANSAWEB?WEBEVENT+L0A51F94A8E468700D061012+ALF+EN
G 

Finally, a responder mentions using 20% iridium, 80% platinum wire.
Responder says this stuff is less brittle and lasts longer than pure platinum
and it cools in less than two seconds to ambient temperature from a flame.
Available from SPI Supplies, Division of STRUCTURE PROBE, Inc. P.O. Box 656,
West Chester, PA 19381-0656 USA1-610-436-5400 / 1-800-2424-SPI (USA Only) /
Fax 1-610-436-5755 Product #1707 - 10 feet long.
It is probably worth checking several sources of Pt wire for price comparison
since the Fisher price is much higher than I remember it being when I ordered
from VWR
Thanks again for all your help.  Cheers and happy worm picking!

Sam Politz



   
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