Robert:

Good talking with you this morning about the CO problem .  As I
mentioned, we are very interested in getting CO of the appropriate
purity and having usable isotopic abundances.  We would be interested
in participating with you to achieve this goal.  Let's keep in touch.
My address is shown below.

Bill Griffis


*******************************************************
William L. Griffis
Chemist
Integrated Stable Isotope Research Facility (ISIRF)
Terrestrial Plant Ecology Branch
Western Ecology Division
National Health and Environmental Effects
Research Laboratory
US Environmental Protection Agency
200 SW 35th Street
Corvallis, Oregon 97333
Telephone:  541-754-4761   FAX:  541-754-4799
E-mail:  [log in to unmask]
*******************************************************

>>> "Robert D. Stickrod II" <[log in to unmask]> - 3/14/00 9:00
AM >>>
Dear List-members,

We are looking for other North American labs that would be interested
in
sharing the cost of a cylinder of UHP-CO that's relatively 18-O
enriched
(i.e. in the range of +20 VSMOW; 30/28 about = 1.3).  This isotopic
need is
based on determinations using CO as the reference gas:

Kornexl et al.  Rapid Commun. Mass Spectrom.  (1999) 13: 1685.
Farquhar et al.  Rapid Commun. Mass Spectrom.  (1997) 11: 1554.
Koziet.  J. Mass Spectrom.  (1997) 32: 103.

Our supplier has offered to buy a cylinder if we can pool about 10 or
so
users who would be willing to cover their portion (+/- $200?) plus
transportation costs.

Thank you.

Robert D. Stickrod II
Idaho Stable Isotope Science Laboratory
Dept. of Forest Resources
University of Idaho
Moscow, ID 83844-1133, U.S.A.
[log in to unmask]
(208) 885-6512

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