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Dear all,

We have been informed by IAEA that the USGS40 (L-glutamic acid) isotopic 
reference material is out of stock from their supply. USGS40 and several 
other isotopic reference materials are now available from the U.S. 
Geological Survey. For ordering instructions, please see  
http://isotopes.usgs.gov/lab/referencematerials.html

Regards,

Haiping Qi


MS 431
U.S. Geological Survey
12201 Sunrise Valley Dr.
Reston, VA 20192

Office: 703-648-6338 
Lab:     703-648-5859 (5871)
Fax:     703-648-5832
email: [log in to unmask]
http://www.isotopes.usgs.gov