Pulsed nuclear quadrupole double-resonance scheme for the detection of rare quadrupolar nuclei

Abstract

A scheme for transient pure quadrupole double resonance in the rotating frame, involving off resonant irradiation of the abundant quadrupolar spins, has been proposed for the detection of rare quadrupolar nuclei. The applicability of the method has been demonstrated by a presentation of the recorded ²³Na pure quadrupole double-resonance spectrum of a polycrystalline specimen of sodium chlorate. In contrast to the other double-resonance schemes in the pure quadrupole regime, the present scheme reduces spectrometer requirements in terms of transmitter power and hardware.