Radical solution for nuclear magnetic resonance magnetometer
US5952826A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1996 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Dec 11, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
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, PA1 dissolved in a solvent consisting of a dimethyl ether with the formula: EQU CH.sub.3 O(CH.sub.2 CH.sub.2 O)n CH.sub.3 (II) in which n equals 3 or 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.