UW CHEMISTRY NMR
Announcments & Equipment Logs
September, 2022
AV500 : IMPORTANCE OF TOUCHING UP THE X,Y SHIMS
Dear Users Way back, I had highlighted the importance of touching up the so-called transverse shims a.k.a. X and Y shims, AFTER you have completed the Topshim command. I had shown a real-life example of the difference this simple step makes in getting a well resolved and great spectrum. Here is a link to that post […]
Posted in Hardware, Spectrometer, Uncategorized, Usage | No Comments »
AV301 : SYSTEM READY FOR USE WITH SURROGATE BBI PROBE
Dear Users The regular probe with a faulty ATMA motor assembly is pulled out for repairs. Do not underestimate the probe that is placed in the magnet as a backup, because it is called Surrogate. This is a newly procured “gently used probe” in excellent condition and gives beautiful spectra as I show below. […]
Posted in Hardware, Probeheads, Spectrometer, Usage | No Comments »
IMPORTANT REMINDER ABOUT ATMA ! PLEASE READ
I am motivated to post this in the wake of ATMA problem with the AV301 probe but, this is generally applicable to both the 300 MHz systems and the new probes with ATMA capability we will get in the near future. Message : Always LOCK first on your solvent BEFORE you attempt ATMA. ATMA program […]
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ALERT ! AV301 – PROBE DOWN DUE TO ATMA RELATED ISSUE
At this point, it is not clear if it’s a hardware problem or a software related issue. We will try to resolve it as soon as we can. If it comes down to the probehead hardware that might take more time to fix, I will place a backup probe in the system. I will post […]
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GG500 : Addressing sporadic misbehavior of ‘wobb’ Window
Users have noticed that the STOP button in the ‘wobb’ window gets grayed out sporadically. When this happens, it appears that you cannot stop the process and proceed with the Acquisition. This is not true. I show below the pull down Sub Menu called User Specific Commands, which itself can be accessed from the main […]
Posted in Uncategorized | No Comments »
GG500 – BIT OF HISTORY, CURRENT ISSUES AND ROADMAP – PLEASE READ
GG500 – Apparent outlier in the pack : Before GG500, we had a really aging and tired DRX500 console, which needed to be driven with a software interface that was predictable and repetitive, to accommodate its fragile and irreparable hardware and produce useful NMR data. The curated work flow of IconNMR’s Routine Spectroscopy interface was […]
Posted in NMR Facility Usage | No Comments »