公开(公告)号：US11650274B2

公开(公告)日：2023-05-16

申请号：US17712548

申请日：2022-04-04

Applicant: Xiamen University

Inventor： Yuqing Huang ,  Zhong Chen ,  Cunyuan Gao ,  Haolin Zhan

IPC: G01R33/485 ,  G01R33/46

CPC classification number: G01R33/485 ,  G01R33/4625

Abstract: A method for acquiring nuclear magnetic resonance (NMR) phase-sensitive two-dimensional (2D) J-resolved spectrum by suppressing strong coupling spurious peaks, comprising: 1) placing a sample, collecting a conventional one-dimensional (1D) spectrum of the sample, and measuring a time width (pw) of a 90° pulse, wherein the conventional 1D spectrum provides J coupling information and chemical shift information of the sample; and 2) introducing a pulse sequence for suppressing strong coupling, setting parameters of a chirp sweep frequency pulse, a pure shift yielded by chirp excitation (PSYCHE) module, and a J sampling module, and collecting and saving data of a spectrum.

公开(公告)号：US20220317214A1

公开(公告)日：2022-10-06

申请号：US17712548

申请日：2022-04-04

Applicant: Xiamen University

Inventor： Yuqing Huang ,  Zhong Chen ,  Cunyuan Gao ,  Haolin Zhan

IPC: G01R33/485 ,  G01R33/46

Abstract: A method for acquiring nuclear magnetic resonance (NMR) phase-sensitive two-dimensional (2D) J-resolved spectrum by suppressing strong coupling spurious peaks, comprising: 1) placing a sample, collecting a conventional one-dimensional (1D) spectrum of the sample, and measuring a time width (pw) of a 90° pulse, wherein the conventional 1D spectrum provides J coupling information and chemical shift information of the sample; and 2) introducing a pulse sequence for suppressing strong coupling, setting parameters of a chirp sweep frequency pulse, a pure shift yielded by chirp excitation (PSYCHE) module, and a J sampling module, and collecting and saving data of a spectrum.