Does anyone know if the d18O of any of the IAEA or USGS ammonium
sulfates has been determined?
We are looking for a traceable reference standard for d18O in SO4, from
a compound that is NOT BaSO4.
Any help would be most appreciated.
Thanks.
Chris
--
Chris Yarnes, Ph.D.
ISOLAB, Dept. of Earth & Space Sciences
University of Washington
Seattle, WA 98195
ph. 206.543.6327
http://depts.washington.edu/isolab