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A New Configuration of High-Resolution NMR Spectrometer With Superconducting Split-Magnet

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2 Author(s)
Okada, M. ; Mater. Res. Lab., Hitachi, Ltd., Hitachi ; Kitaguchi, H.

New NMR magnets have successfully been developed and tested. The new NMR magnets consist of superconducting split-pair magnets with a room temperature cross-bore. Probes with solenoidal antenna are inserted from the horizontal branch of the cross-bore. The most benefit of the split-pair magnet is a significant improvement of the signal to noise ratio (SNR). With room temperature probes, the SNR of the standard 0.1% ethylbenzene in CDCl3 reached 416 and 1487 for 300 MHz and 600 MHz system, respectively. With a cryogenic probe under development, the SNR improved to 4500 in 600 MHz. A new 300 MHz NMR system has also been fabricated and is under test for a new physicochemical application.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:18 ,  Issue: 2 )

Date of Publication:

June 2008

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