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From: "Little, James L " <jllittle@eastman.com>
Date: Fri, 16 Apr 1999 07:16:38 -0400
Subject: Methylamine Chemical Ionization/Manifold for Multiple CI Gases
Organization: *

I have found a mixture of methylamine and methane to be very useful for
compounds that yield no molecular weight information with either isobutane,
methane, or ammonia. We routinely use a variety of gases for chemical
ionization depending on the type of compound.  To facilitate the switching
of gases, we built a very easy to use manifold.

Documentation on both of these topics can be found at:

"A Little Mass Spectrometry and Sailing":
http://users.intermediatn.net/slittle

If you have used methylamine or have a home-built CI manifold, I would
be interested in hearing your experiences.

Thanks.

James L. Little
Bldg 150
Eastman Chemical Company
Kingsport, TN 37662-5150
Tel 423-229-8685
FAX 423-229-4558