Development of an NMR Spectrometer Operated beyond 1 GHz

– The Significance and Prospects of a NMR Spectrometer Operated beyond 1 GHz –

Abstract

We have developed the world's highest magnetic-field 1,020 MHz (1.02 GHz) NMR by using a Bi-2223 hightemperature superconducting inner coil and low-temperature superconducting outer coils. High resolution 2D solid-state NMR spectra were achieved for a membrane protein by using the 1.02 GHz NMR. The NMR spectral resolution achieved using the 1.02 GHz NMR was 2.6-fold higher than that achieved using a 700 MHz NMR. This paper describes the historical significance and future prospects of NMR magnets operated beyond 1 GHz.