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400 MHz QNP Cryoprobe Spectrometer - 'Cragganmore' - Room B28

The NMR Service runs in room B28 using two spectrometers at 400 and 500 MHz, both with cryoprobes.  The 400 MHz QNP Cryoprobe is able to run 1H, 13C, 19F and 31P spectra with tuning provided by the automatic tuning and matching (ATM) module.  It is the best instrument for observing Fluorine and Phosphorus nuclei, and will produce good Carbon spectra on samples of 10mg or more.  The spectrometer operates using IconNMR software and has a sample changer.  It can run automatically with the NMR Service staff adding samples to the queue.  The instrument can run 2D spectra including COSY, HSQC, HMBC and NOESY, as well as multinuclear experiments like HOESY. 

The picture below shows the operators position for the instrument. It uses three screens and two PC's to deal with Topspin's main window, separate windows for the IconNMR automation and lock display, and the access database which holds all the information on every sample run by the NMR Service.





























































The new SampleXpress sample changer (above) was installed 2018 to replace the failed old style BACS 120 which can be seen in the first photograph above. It is much more efficient and user friendly as well as providing a safer environment for valuable samples. It has improved our throughput as we are now able to run multiple samples overnight and at weekends. One advantage over the old style BACS changers is the ability to run NMR tubes which are slightly lower than the recommended height (often through chipping over time). Please see us in B28 for more details.