UW CHEMISTRY NMR
Announcments & Equipment Logs
Hardware
AV500 : ALERT : LOW VT SYSTEM NOT AVAILABLE
The LN2 evaporator assembly cracked open and it is being repaired as we speak. Till that is ready, users won’t be able to do a low VT run which requires LN2 evaporation. We will post an update as soon as the system is operational in this regard.
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UPDATE : AV300 – SAMPLE SPINNER RECOVERED FROM MAGENT
Users are strongly advised to pay attention to the way they position sample tubes in the spinner before injecting in the magnet. One person’s carelessness is going to cost NMR time to all the users. Thank you for your cooperation.
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AV700 – UPDATE : THE NEW BBO PROBE IS READY FOR USE.
Users can block time for this X – direct detect double resonance probe that includes Z-gradient capability. Please note that the 1H sensitivity will be quite lower compared to that of a BBI probe and one should plan the experiments accordingly. Please ask one of us if you have questions.
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AV700 – UPDATE ! NEW BBO SOLUTIONS PROBE WILL BE READY FOR REGULAR USE SHORTLY
The 700 MHz instrument has a new BBO solutions probe installed that is capable of observing two nuclei at the same time. This is a state of the art probehead with Z-gradient capability and it can reach sample temperatures of 110 C, for prolonged runs. With the modern low VT system, the samples can be […]
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AV301 – UPDATE : LINESHAPE DISTORTION
We are aware of this issue and looking into it. Preliminary investigation has ruled out the probehead to be the immediate cause and we are in the process of testing other components. In the meanwhile, users are encouraged to use the pulse program zg30 in place of the usual zg experiment to record the spectra. […]
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ALERT – AV500 : DEUTERIUM GRADIENT SHIMMING NON-FUNCTIONAL
A hardware board malfunction makes the 2H Topshim non-functional. Repair attempts are in progress with the faulty circuit board. Users can still use Topshim 1D and 3D for proteo-solvents and aqueous sample preps. Update will be posted in due course.
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UPDATE : ALL FACILITY INSTRUMENTS ARE OPERATIONAL
All instruments tested to be stable and in normal operational mode. The FTP server is hosting the data trees of all instruments, as expected.
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ALERT ! FACILITY POWER SHUTDOWN TOMORROW, Sept. 5th
As announced earlier, the NMR facility instruments will be shutdown by 3.30 pm tomorrow in anticipation of a scheduled power shut down to the NMR lab i.e. Room:37, Bagley Hall by early morning on Saturday the 6th September. The power shut down is announced to last until 3.00 pm on Saturday. The instruments will be […]
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EARLY ALERT : POWER SHUTDOWN NEXT WEEK – Friday, Sep. 5th
Users might have noticed the power disruption announced for Bagley Hall on Sep. 6th, Saturday. This planned event will affect the NMR lab Rm:37 from the early morning of Saturday 6th until about 3.00 pm on the same day. The facility instruments, therefore will be shutdown by the afternoon of Friday the 5th Sep. and […]
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AV700 – UPDATE : PNEUMATICS BOARD MALFUNCTION
Probably due to a voltage surge this weekend past, the pneumatics control board on 700 appears compromised. No VT regulation or sample transport is possible due to this and we are energetically trying to resolve the issue. Please look for further updates in this space. The machine is unusable until then.
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