Dear AMMRLers:
I am trying 23Na on our Bruker ARX300 with 5 mm BBI probe with Z-gradient.
I got a huge signal. The half width is about 6700 Hz.
I did a test without the sample in the magnet, I got that huge signal. I even
removed the quartz inserts in the probe. The huge signal is still there.
Is it possible that the huge signal comes from the inner proton coil? Is it
possible the inner proton coil is dirty? How do I clean it if it is dirty? I
have a Z-gradient coil there. Did someone see the same phenomenon before?
Thanks for your help.
Best regards,
Frank
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Zhe (Frank) Zhou, Ph.D.
NMR Facility Manager
Department of Chemistry, Louisiana State University
232 Choppin Hall, Baton Rouge, LA 70803-1804, USA
Email: frank.zhou_at_chem.lsu.edu
Office: (225)-388-3460, Lab: (225)-388-3373/(225)-388-3597
Departmental Fax: (225)-388-3458
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Received on Sat Apr 08 2000 - 19:52:02 MST