Hi All,
I am looking for some accurate 1H T1/T2 values for a standard sample.
Has anyone looked at any of the typical sealed NMR standards?
- 0.1% ethyl benzene 1% TMS in CDCl3 (sensitivity)
- 10% ethyl benzene 1% TMS in CDCl3 (sensitivity)
- 10% Chloroform 1% TMS in Acetone-d6 (lineshape)
If someone has another readily available standard for which they have
reliable 1H T1/T2 values that will be fine also. I've tried looking at
13C in 80% ethyl crotonate/CDCl3 and my T1's seems to be 10-15% too
large. I'd like to be able to have some proton stds. that student
could use easily.
Any help is appreciated.
Thanks,
Dave Aurentz
--
David J. Aurentz, Ph.D.
Assistant Professor of Chemistry
Penn State Berks
Tulpehocken Road, P.O. Box 7009
Reading, PA 19610-6009
Office: (610) 396-6397
Fax: (610) 396-6024
Received on Mon Dec 08 2008 - 05:28:54 MST