Solution for radicals for an NMR magnetometer

摘要

A new solution composition contains a nitroxide radical, for a NMR magnetometer, of formula (I) (where R1, R2, R3, and R4 (identical or different) = alkyl or alkoxyl(opt. deuterated) or the pairs R1-2 and/or R3-4 may form a cycloalkyl or polycycloalkyl group(opt. deuterated); -N = <14> N or <15> N) -in a solvent comprising a dimethyl ether of the formula CH3 - O (CH2 - CH2 O)n-CH3 (II). Also claimed, is the NMR magnetometer sensor using the new nitroxide radical solution.