High-resolution NMR spectroscopy in unstable and inhomogeneous fields via stroboscopic acquisition

► t1 noise that unstable fields impose on iZQC spectra were analyzed. ► Stroboscopic acquisition was proposed for noise suppression ► SA-HOMOGENIZED sequence was designed for the case with large field fluctuation. ► SA-iDH sequence was designed for the MRS. ► A phase-sensitive scheme was proposed to further improve the spectral resolution.