AMMRL: x channel tuning problem when autosampler was used

From: Zhao, Chunqing <czhao1_at_unc.edu>
Date: Fri, 11 Feb 2022 23:57:19 +0000

Hi:

We have one Agilent 400MR instrument with autosampler (SMS50) attached to it.
The probe is AutoX.

It has x channel tuning problem recently.

When sample was analyzed using autosampler, the following curve was displayed
on ProTune window

[cid:image001.jpg_at_01D81F77.70EBCAE0]

However, if the sample was analyzed manually and tuned x channel using ProTune,
the normal tuning curve was displayed on ProTune window (same sample)

[cid:image002.jpg_at_01D81F77.70EBCAE0]

A new ProTune Sweep Range was calibrated this morning. The normal tunning
curve was obtained after calibration, but the abnormal curve came back
again this afternoon.

1H/19F channel tuning is good without any problem.

Could anyone tell me what was wrong?

Thank you very much,

Nelson Zhao
UNC Pharmacy NMR lab

Received on Fri Feb 11 2022 - 13:57:56 MST