Shchukina Alexandra, Kaźmierczak Magdalena, Kasprzak Paweł, Davy Matthew, Akien Geoffrey R, Butts Craig P, Kazimierczuk Krzysztof
Centre of New Technologies, University of Warsaw, Banacha 2C, 02-097 Warsaw, Poland.
Chem Commun (Camb). 2019 Aug 7;55(64):9563-9566. doi: 10.1039/c9cc05222d.
Pure-shift NMR enhances spectral resolution, but the optimal resolution can only be obtained at the cost of acquisition time. We propose to accelerate pure-shift acquisition using optimised 'burst' non-uniform sampling schemes [I. E. Ndukwe, A. Shchukina, K. Kazimierczuk and C. P. Butts, Chem. Commun., 2016, 52, 12769] and then reconstruct the undersampled signal mathematically. Here, we focus on the reliability of this reconstruction depending on the sampling scheme and present a workflow for the sampling optimization. It is ready to be implemented in routine measurements and yields a great improvement in reconstruction of challenging cases.
纯位移核磁共振（NMR）提高了光谱分辨率，但只有以采集时间为代价才能获得最佳分辨率。我们建议使用优化的“突发”非均匀采样方案[I.E.恩杜克韦、A.舒基娜、K.卡齐米尔丘克和C.P.巴茨，《化学通讯》，2016年，52卷，12769页]加速纯位移采集，然后对欠采样信号进行数学重建。在此，我们关注这种重建的可靠性（取决于采样方案），并提出一种采样优化工作流程。它已准备好在常规测量中实施，并在具有挑战性的案例重建中取得了很大改进。
