Date: Tue, 14 May 2024 00:26:13 -0700
Hello everyone,
We recently conducted a 29Si experiment on our system and encountered two
issues. We would appreciate your advice on these matters.
Issue 1: I was able to tune and match the probe with ATMM as shown in the
attached picture. I stored the values by clicking on the close and store
values box. However, when I tried to perform ATMA, I was directed to optimize
from ATMM again. A message box popped up on the screen, as attached in this
email. I am wondering how to store the wobble curve so that ATMA can adjust
it itself.
Issue 2: The researcher expected a heptate from 29Si at around 188ppm, but
I only detected a pentate. The signal is clear, but the outermost signals
didn't appear. I am wondering what parameters I should focus on to improve
the result. Do you think an inaccurate 90-degree pulse could be the cause?
Kind regards,
--
Muhammad Adil Raees, Ph.D.
Manager NMR Facility
The Central Laboratory
Syed Babar Ali School of Sciences and Engineering
Lahore University of Management Sciences
Opposite Sector-U, D.H.A. 54792, Lahore
+92-330-2866755
adil.raees_at_lums.edu.pk
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(image/png attachment: 29Si.png)
(image/png attachment: ATMM.png)
(image/png attachment: ATMA_message.png)
(image/png attachment: 04-29Si.png)