The NMR Facility is open for NMR-staff operated service work only. Read the guidelines below.
Please follow all new guidelines outlined in the COVID 19 – Phase 3 operations document. Users should also review the Chemistry Department’s Guidelines for working in the building. Additional information about COVID-19 compiled by the department can be found here.
NMR Facility hours match the Chemistry Building hours: users should not enter the building or Facility outside of these hours.
Submission times until Oct 25: 8:30am, 11:30am, 2:30pm, 5:30pm, 9pm (weekdays); 1pm and 5pm Sat and Sunday
******* NMR service will continue Oct 25 through Nov 5 on a modified schedule ******
NMR staff have gotten permission to do limited NMR service during the duct testing period. We cannot enter during weekdays from 6am to 4pm, but can on a limited basis once the work crews have left. NMR staff will perform submissions at the following times:
4:30pm, 7pm, 9:30pm
To assist with sample turn-around, we have added two new components:
1. For samples being submitted for the 4:30pm submission time, users can request priority service (i.e., these samples will be put in the front of the queue):
— Put PRIORITY in the subject line of the email.
— State a reason for the priority request in the body of the email. Two reasons are appropriate for priority requests: (i) the sample is unstable (e.g., air-sensitive), (ii) the sample is needed back for continued work that same evening.
— Please do not request priority unless you really need it. Otherwise its usefulness will be (quite likely greatly) reduced.
2. NMR staff will return samples that have completed each weekday at 5:30pm, hopefully including all priority samples. We’ll also, as always, return all samples completed at all submission times listed above.
Samples submitted at 9:30pm and others that run past 9:30pm in the queues will not be returned until the following day at 4:30pm.
******* Brief instructions for the submission process *******
Please note that no one other than NMR staff may enter Mathews, including all areas of the MR Facility, during this time. This includes all times, even when others are briefly allowed into the building. Saying it another way: No one other than NMR staff may use the spectrometers at any time, including for sample pickup. If you have urgent need for your sample(s) after it’s finished running, email NMR staff and we’ll do our best to expedite getting the sample back to the pickup table.
1. Use these instructions (they are unchanged from earlier) to properly fill out your Excel spreadsheet. For the duct testing period, we will use all spectrometers. Eos will be available overnight only; Chem 636 is using it during weekdays until 9pm.
2. Send the spreadsheet to firstname.lastname@example.org when you are ready to deliver the samples. Please don’t send the spreadsheet a lot earlier or later; that becomes a problem for the staff member submitting the samples.
3. Transport your samples in a properly labeled and stable sample container. The only entry to Chemistry during this week is through the main Shain entrance on Charter St. Current UW-Madison guidelines are that you wear a face mask while in the Chemistry building, whether you are vaccinated or not.
4. Take your samples to the 2nd floor Shain mezzanine next to the elevator doors and put them in their container on the drop-off table. The tubes must be clean and properly prepared for NMR, and be either 4″ (for Artemis/Eos) or 7″ in length. Use caps appropriate for the instrument you’ve requested.
5. You can check on the status of your samples using the IconNMR Setup links for the specific spectrometer on the Chem NMR website’s calendar page.
6. Within 48 hr of your samples finishing on the spectrometers, come back to the Shain 2nd floor mezzanine and retrieve them from the pick-up table.
The NMR facility will return to normal (user-run) operations as soon as we can. Current information is that that may happen Nov 8, 2021. We will update via email and here when we other more information.
If you questions or concerns, please send those to email@example.com.
*********** Other news *********************************************
New: The Eos BBFO probe has been worked on and returned from Bruker. Unhappily, we’ve found that their work did not repair the probe, and further work will be required. The quad nucleus probe (QNP) will remain installed on Eos (400). The QNP probe shims well, and can detect 1H, 13C, 19F and 31P. It cannot detect other nuclei. (Artemis and Nyx are good for other nuclei work.) The QNP probe works well with IconNMR. It is VT capable (in topspin only) from -120 to +100C.
The new 500 MHz spectrometer, Nyx, is now available to users that have appropriate training. New capabilities for operando operation are not yet installed, but the spectrometer has a BBFO+ probe installed that can detect any NMR-active nucleus. It will operate over a VT range of -120 to +120C. The functionality is very similar, albeit with better sensitivity, to what persephone had when it was in liquids mode. It you want to start using Nyx, you must have taken Chem 636 or had equivalent training. Email firstname.lastname@example.org to schedule a time when we can get you introduced to the spectrometer. That session will take about 10 min, assuming you’ve previously used Eos (in topspin mode), Persephone, and/or the 600.
Phoebe (600) is available to all users that were using it prior to the pandemic shutdown, or trained since we re-opened. Users must email email@example.com to have us meet you during your first session on the spectrometer since the hard disk failure about a month ago.
The full MR Facility has resumed “normal” accounting practices for applying charges. All users must be aware that fees are not based on calendar requests, nor are they based on IconNMR use. Under calendared use, charges are based on the time logged into the spectrometer (independent of whether an experiment is running or not). That has worked well in the past, and is an accurate and efficient method for doing the accounting. It is the user’s responsibility to sign-up and use just the time needed under calendared use. Log out when done. If the user assumes someone else will logout for them and that does not happen, the full amount of time the user is logged in will be charged. Do not signup for a set of short experiments unless someone will stick around to log out when the experiments are done.
[21 Oct 2021]