Reservation and Rules


ONLINE BOOKING

Users can connect to the online booking system with their UNIGE credentials.

It is absolutely mandatory to cancel any unused time so that others can use it.

Note that reservation and cancellation are logged. This allows reconstituting the planning in case of break down and for statistics.

 

EXPERIMENTS SCHEDULE

    • Spectrometers are working with day/night experiments. Night and weekend experiments starts at 8 pm and ends at 8 am.
    • During weekdays from 8 am to 8 pm, spectrometers are in open service with reservation for 5 to 20 min (maximum, each time). During night, no reservation is required. You may book your time online.
    • Any periodic reservation during working days has to be justifiable to the service which may, depending on individual cases, propose less invasive solutions. If a researcher has special needs for time, he informs the service who will eventually allow extended access.
    • Day experiments (proton 1H, quick 13C, quick DEPT135, 31P, quick COSY…) last 20 minutes maximum. They have priority over night experiments, this is why it must not last longer than standard experiment times.
    • During night time, the rule is 2 hours of acquisition/user/night, corresponding to a complete analysis (proton 1H, carbon 13C, DEPT135, HSQC, HMBC), or proton 1H + carbon 13C of 4k scans, etc. It is possible to add more experiments only if time remains available at the end of the day.
    • If a spectrometer is not used, but someone has reserved the time, the machine can be used only after checking that the person who made the reservation agrees.

 

NMR TUBES

    • 5 mm diameter tubes: 300 MHz (WILDMAD WG-1226-7-5) or 500 MHz (WILDMAD 528-PP-8).
    • Type E (low quality) NMR tubes are forbidden.
    • For 500 MHz spectrometer requests, only “500 MHz quality” tubes are allowed.
    • Standard J-Joung tubes are forbidden (only short ones can be used).

 

SAMPLE HANDLING

Each user has to:

    • Use the NMR “cap code” corresponding to his group (see Figure).
    • Remove his tube.
    • Optimal solvent volume: 600 ul (around 5 cm), no more, no less.

 

PROBLEMS

It is important and mandatory to announce immediately any problem encountered when using the NMR spectrometers. This is especially true for tubes that are broken into the probe or if the sample changer is not running.