Sibylle:
I would suggest using an activated carbon cartridge that Alltech or Supelco
might sell for GC gas purification/drying or SPE cartridges that are used
for air sampling for EPA methods. If there is radioactivity, you will have
to either trash the pump or dedicate it since the oil, the seals, the
vanes, etc. will be contaminated. If you put the trap in front of the
pump, or better, put two traps there, then if the second trap has no
measurable activity, the pump could be presumed safe for further operation.
Best regards,
Amos
Amos Heckendorf (nestgrp@world.std.com)
The Nest Group, Inc., Value Added Resellers of HPLC Columns (Vydac(tm),
PolyLC(tm), BioChrom Hydrocell(tm), Jordi-Gel(tm), Macherey-Nagel
Nucleosil(tm), Higgins Analytical HAISil(tm) & TARGA(tm), and Bischoff
Prontosil(tm)) ESA(tm) PAGE gels; Amika (Sialomed) COZAP Destaining pads
and Dispo-BioDialyser(tm) MicroDialysis tools; and KronLab BioCart(tm)
glass adjustable columns. Tel: 800-347-6378 or 508-481-6223; FAX
508-485-5736;
45 Valley Rd, Southboro, MA 01772-1306
Applications and Protocols at:
HTTP://world.std.com/~nestgrp/protocols/protocol.html