The NMR service in Teaching Labs is run as a submission service. You will need to prepare an NMR sample and submit it to the service for the relevant acquisition(s). Samples are usually recorded overnight, and you will need to consult the accessing data pages to locate your results. This page documents the processes occurring following sample submission.

Samples are collected from the submission point and are matched against the submission spreadsheet. Samples are then organised into the order in which the samples will be run. Usually shorter experiments (e.g. samples for proton only) are run first, with longer experiments running later.

Each sample is removed from the tag, the tube is wiped to remove any fingerprints or other dirt which could affect the acquisition, and the sample is placed into a spinner to hold the sample. The tube needs to be adjusted in the spinner to the correct length, and the sample checked around the coil centre line mark.

The sample is placed into a slot in the autosampler, and the tag is hung onto a hook for the corresponding slot.

Information for the sample is taken from the submission spreadsheet and is copied into the NMR queue on the submission computer. The computer is organised by slots, corresponding to the positions on the autosampler. For each sample the following information is required:

• Date (autopopulated)

• Experiment number (autopopulated)

• NMR solvent

• Experiment(s) required

• Sample comments

There are also editable fields to adjust experiment parameters, such as changing the number of scans for an experiment. Once the details are complete, the details are submitted, and the sample will be added to the acquisition queue.

The final step is for the spreadsheet to be updated with details of the experiment number(s) for the sample.

The spectrometer

The spectrometer

The spectrometer

The spectrometer

The spectrometer

The spectrometer