400 MR

†††††††††††† = Sign-up time limited to 30 minutes

Red times = $10/hour          Green times = $5/hour          Blue times = $2.50/hour

• • There is no walkup time scheduled on the spectrometer.  You should generally signup on the calendar for time.  Short time slots of 30 minutes are available on weekdays between 10am-6pm.

  • You may walkup and use it for short experiments if it is not in use, but be aware that signups take priority.

  • Classes have the highest priority.  Their scheduled times will be indicated on the online calendar.

  • Acquisitions of 1 hour or more should be scheduled between 6pm-10am on weekdays and all day on the weekends.  If you cannot be at the spectrometer at the time when your experiment will finish, you may leave a note with instructions on how you would like your spectrum saved.  Remember, you may choose to request someone else save your data, but ultimately your data (and sample) are your responsibility.

  • Only trained users, trainees under supervision and NMR personnel should be using this spectrometer.  

  • Probe tuning is essential on this spectrometer, since a number of different nuclei can be acquired.

  • Variable temperature at cold (max -50 to -60 degrees) or warm (max=100 degrees) temperatures is possible, but only for users that have been specifically trained for this application.

  • You should always consult the online calendar.  Helium fills typically require ~ 1 hour and the magnet may not be very stable for some time afterwards.  The fills will always be noted on the calendar.

  • No sample manipulation should be performed in the spectrometer room.  You should bring a clean, capped NMR tube with sample inside to the NMR lab.  There are many possibilities for carrying your NMR sample tubes – your POCKETS are not a good option.

  • Gloves should be unnecessary.  If you need to wear gloves to handle your sample tube, then your tube should not be placed in the magnet.

  • Do not wear your lab coat into the NMR lab. Lab coats come into contact with potentially contaminated surfaces in your lab and should not be worn in common spaces including the hallways and elevators on the way to the NMR lab.

  • Processing and analysis of your data is discouraged on the spectrometer.  The datastation (cosyj) is free to use for processing and analysis.  Also, your data can be accessed remotely in your labs from cosyj.

  • You must sign the logbook each time you use the spectrometer.  Repeated failure to do so will result in a suspension of NMR privileges.

  • If you break a sample tube while trying to insert it into the spinner, make sure to clean up all glass and chemicals.  Take the spinner (and any glass remaining inside it) to the NMR Director or NMR TA.  Do not attempt to clean the spinner yourself and do not leave that spinner at the spectrometer.

  • If you break a sample while trying to insert or eject it from the magnet, immediately post a sign at the spectrometer to prevent anyone from using it.  Then contact the NMR TA or the NMR Director.  Serious damage to the probe can result from broken samples, especially if users insert a new sample on top of the broken one.

  • Since samples do break sometimes, this is not a chemical-free area so food and drink are not allowed.

  • The spectrometer room is very small and while the stray field is small, you still need to be wary about the magnetic field.  You should only approach the magnet to insert and eject samples.

  • A standard sample (D2O or H2O/D2O) is kept in the magnet whenever the system is idle.  When you leave the spectrometer you should eject your sample and insert the standard at the proper depth.  Do not insert any random sample (sealed sensitivity samples, phosphoric acid, user samples).  If you cannot find the standard water sample, contact the NMR TA.

  • Only NMR personnel are allowed to reboot the console, the master controller or the computer.  If you believe that one of these actions is required, you should contact the NMR TA or NMR Director.