Small Magnets for Portable NMR Spectrometers


  • This project was supported by the Deutsche Forschung Gemeinschaft grant CA660/3-1. E.D. thanks the Alexander von Humboldt foundation. We thank Klaus Kupferschläger for technical support.


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Downsizing: A pocket-size permanent magnet has been constructed that is suitable for measuring 1H NMR spectra of samples in standard NMR tubes. The new shimming approach implemented to overcome the inherent inhomogeneity of permanent magnets opens the door to compact high-resolution NMR spectrometers for conventional samples.