Application of nuclear magnetic resonance/magnetic resonance imaging techniques to estimate proton relaxation parameters at earth field

Abstract

The nuclear magnetic resonance (NMR) field of the earth may be utilized to estimate proton relaxation parameters in different liquids. In liquid samples, it can quantify proton relaxation durations T-1 and T-2, along with the self-diffusion coefficient D, thanks to the magnetic field of the earth. It was proven that it is feasible to distinguish between liquids based only on these characteristics by analyzing a wide range of liquid samples. In this study, it was investigated whether it is possible to utilize the earth's magnetic field NMR (EFNMR) so as to quantify T-1 and T-2 correctly and practically along with the self-diffusion coefficient D. These findings pave the way for additional research into the use of EFNMR for the determination of relaxation parameters. Two-dimensional hydrogen-1 (H-1) NMR images of 50ml of the solvent toluene at low frequencies were acquired using the magnetic field of the earth.