Related Experiment Video
Updated: May 13, 2026

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement
Published on: November 7, 2017
High resolution para-hydrogen induced polarization in inhomogeneous magnetic fields
L Buljubasich1, I Prina, M B Franzoni
1FAMAF Universidad Nacional de Córdoba, IFEG CONICET, X5016LAE Córdoba, Argentina.
Abstract:
The application of parahydrogen for the generation of hyperpolarization has increased continuously during the last years. When the chemical reaction is carried out at the same field as the NMR experiment (PASADENA protocol) an antiphase signal is obtained, with a separation of the resonance lines of a few Hz. This imposes a stringent limit to the homogeneity of the magnetic field in order to avoid signal cancellation. In this work we detect the signal arising from hyperpolarized Hexene by means of a CPMG pulse train. After Fourier transformation the obtained J-spectra not only presents an enhanced spectral resolution but also avoids partial peak cancellation.
Related Concept Videos
π Electron Effects on Chemical Shift: Overview
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)
Atomic Nuclei: Magnetic Resonance
Paramagnetism
NMR Spectrometers: Resolution and Error Correction
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)
