基于纵向多自旋阶与Hadamard编码拥挤NMR谱解析
Resolving Crowded NMR Spectra Based on Longitudinal Multi-spin Order and Hadamard Encoding
基于纵向多自旋阶与Hadamard编码拥挤NMR谱解析 |
| 李雪婷, 梁伟, 张欣彤, 崔梦琪, 林玉兰 |
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Resolving Crowded NMR Spectra Based on Longitudinal Multi-spin Order and Hadamard Encoding |
| LI Xueting, LIANG Wei, ZHANG Xintong, CUI Mengqi, LIN Yulan |
| 图1 Hadamard-DQF-LMO脉冲序列. 射频部分（RF）中，白色矩形表示预饱和压水模块（WS），多重波形p1和p2分别代表多色180°跃迁脉冲和Hadamard编码的多色180°脉冲，虚线矩形和黑色矩形分别代表180°和90°的非选择性脉冲. 梯度场部分（Gz）的矩形G1和G2表示散相梯度场，其强度比为1：2 |
| Fig. 1 The Hadamard-DQF-LMO pulse sequence. The white rectangle represents the water suppression (WS) presaturation module, while the composite waveforms p1 and p2 correspond to the polychromatic 180° transition pulse and Hadamard-encoded polychromatic 180° pulse, respectively. The dashed and solid black rectangles denote non-selective 180° and 90° pulses, respectively. The rectangles G1 and G2 indicate the dephasing gradient fields with an intensity ratio of 1：2 |
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