Dear Dr. Brooks,

I wonder where you are getting you H2 reference gas now. I have a system
myself and is searching for a H2 source with less depleted values. I will
appreciate your help.

Thanks

Yongsong


At 05:05 PM 10/13/99 -0700, you wrote:
>I am just setting up to begin H/D analysis, and have been told that regular
>bulk tank H2 is always so depleted that it is useless to use as a reference
>gas.  What do other users do for a H2 reference gas here in N. America?  Is
>there a supplier of a bulk gas in a reasonable range?  I already have a
>small tank of calibrated H2 but it is much too expensive to use as a day to
>day reference gas.
>
>Thanks in advance,
>
>Paul D. Brooks.
>
>
>
>
>Paul D. Brooks.
>
>Dept. ESPM-Ecosystem Sci.,
>151 Hilgard Hall, MC 3110,
>UC Berkeley, Ca. 94720-3110.
>
>phone (510)642-3155
>FAX   (510)643-5098 (to Att. Paul Brooks)

Dr. Yongsong Huang
Assistant Professor
Department of Geological Sciences, Office 147
Brown University
Providence, RI02912

Tel: (401) 863-3822     Fax: (401) 863-2058
Web site: http://www.geo.brown.edu/faculty/huang/index.html