I have been thinking to standarize sample volume/height and tube quality
for routine and not-so-experienced nmr users in our department. I am sure
these and similar nmr management issues were discussed before, but I want
to receive some feedback from your own experiences.
It is difficult to judge the quality of each nmr tube by routine
student users, and I recommend using at least Wilmad 528-pp at 400 MHz or
even at 300 MHz. The sample height for high resolution nmr in a 5 mm tube
should be about 5 cm high. I have seen recommendation of 4 cm sample
height, too. For expensive solvents, smaller sample height is, however,
desirable.
Thanks in advance for your comments,
Sandip
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Sandip K. Sur, Ph.D. Email: sur@chem.chem.rochester.edu
NMR Facility Tel.: (716) 275 4705 (W)
Department of Chemistry (716) 275 0912 (W)
B53B Hutchison Hall, R.C. (716) 586 7794 (H)
University of Rochester Pager: (716) 275-4231 (ask for me)
Rochester, NY 14627-0216 Fax: (716) 473 6889
Thursday, November 5, 1998
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