Radical solution for nuclear magnetic resonance magnetometer

Details Radical solution for nuclear magnetic resonance magnetometer Radical solution for nuclear magnetic resonance magnetometer

1996-12-11

1999-09-14

Arana, Louis

Electricity: measuring and testing

Particle precession resonance

Using a magnetometer

436173, G01V 300, G01N 2400

Patent

active

059528265

ABSTRACT:
This invention relates to a radical solution for nuclear magnetic resonance magnetometry, having resistance to magnetic field gradients over a wide temperature range. This solution consists of a nitroxide radical with the formula: ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4, which may be identical or different, represent an alkyl group or an alkoxy group which may be deuterated, or in which the R.sup.1 -R.sup.2 and/or R.sup.3 -R.sup.4 couples together form a cycloalklyl or polycycloalkyl group which may be deuterated, and N represents .sup.14 N or .sup.15 N,

REFERENCES:
patent: 3966409 (1976-06-01), Hrvoic et al.
patent: 5198767 (1993-03-01), Glenat et al.
patent: 5681753 (1997-10-01), Bourbon et al.
Journal of the Chemical Society, Perkin Transactions 2, pp. 2049-2052, 1993, R. Bolton, et al., "An EPR and NMR Study of Some Tetramethylisoindolin-2-yloxyl Free Radicals".

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