Patent ID: 6972566

Claim:
A method for determining the content of a first component of a sample with the aid of a low-resolution nuclear magnetic resonance (NMR) pulse spectrometer, said first component having a first self-diffusion coefficient D 1 and providing a first NMR signal, said sample additionally containing at least one further component having a further self-diffusion coefficient D 2 larger than said first self-diffusion coefficient D 1 and providing a further NMR signal, comprising the steps of: exciting said sample by a radio frequency (RF) excitation pulse, exposing said sample to a magnetic gradient field and exposing said sample to a sequence of further re-focusing RF pulses for generating spin echo signals, wherein said magnetic gradient field is not switched-off during said sequence of further re-focusing RF pulses, detecting said spin echo signals and determining amplitude values of said spin echo signals, and determining a value for said content of said first component of said sample from said amplitude values of said spin echo signals.