Dear list members.

The background on my Delta plus 253 jumps extremely high when I switch the
helium backflush off using GC-P-IRMS (deuterium). This background seems to
increase only slightly if I increase the GC flow rate from 1 to 2.or higher.

Thank you

Mohamad Awada, PhD
Director of Analytical Chemistry
KineMed, Inc.
5980 Horton St., Suite 470
Emeryville, CA 94608
www.KineMed.net
ph (510) 655-6525, ext. 114
fax (510)655-6506