nuclear magnetic resonance method multiple quantum filter An NMR technique used to edit the NMR response from a sample by selecting particular spin systems of interest according to the number of nuclei present within them. Usually achieved by appropriate cycling of the phase (direction of application) of the pulses in an experiment and of the receiver. MQF https://orcid.org/0000-0001-5985-7429 2009-05-29T12:00:00Z CHMO:0001875