Liquid state nuclear magnetic resonance at low fields using a nitrogen cooled superconducting quantum interference device

Abstract

Residual dipolar couplings between quadrupolar nuclei in solid state nuclear magnetic resonance at arbitrary fields Evaluation of radio frequency microcoils as nuclear magnetic resonance detectors in low-homogeneity high-field superconducting magnets Rev.

Improved determination of FID signal parameters in low-field NMR

“…According to another low-field NMR survey, a value of pure T 2 % 1.3 s was reported [33]. Thus, the results obtained in this work with a 10 ml tap water sample are of the correct order: the T Ã 2 is less than the pure T 2 for distilled water, as is to be expected.…”

Nuclear magnetic resonance in the earth’s magnetic field using a nitrogen-cooled superconducting quantum interference device

“…Excellent resolution even in the presence of field inhomogeneities was demonstrated. [6][7][8][9][10] In the work presented here, we came back to EMF-NMR and took SQUIDs as the NMR signal detector, thus combining the EMF's homogeneity with the SQUID's sensitivity. Operating our high-T c SQUIDs outdoors, we recorded NMR spectra of tap water, benzene, fluorobenzene, and 2,2,2-trifluoroethanol.…”

Low-field NMR measurement procedure when SQUID detection is used

“…It is assumed that the magnetization M of the sample after turning off B p is still nearly perpendicular to B m . Such low-field NMR measurements are discussed, for example, in [2][3][4][5][6].…”