| 三能级体系的Z回波核磁共振粉末谱 |
| |
| 引用本文： | 李鲠颖,邬学文. 三能级体系的Z回波核磁共振粉末谱[J]. 物理学报, 1991, 40(10): 1717-1722 |
| |
| 作者姓名： | 李鲠颖 邬学文 |
| |
| 作者单位： | 华东师范大学分析测试中心,上海,200062 |
| |
| 摘 要： | 本文提出一个Z回波核磁共振(NMR)脉冲序列,可以获得三能级体系的纯偶极或纯四极谱。Z回波NMR谱不仅与化学位移各向异性无关,而且在强射频场条件下,与射频场非均匀性无关。该方法明显优于章动NMR技术。以上结论经过理论分析和实验结果的验证。关键词：
|
| 关 键 词： | 三能级体系 NMR 粉末谱 Z回波 |
| 收稿时间： | 1990-12-12 |
Z ECHO NMR POWDER SPECTRUM OF THREE-LEVEL SYSTEMS |
| |
| LI GENG-YING and WU XUE-WEN. Z ECHO NMR POWDER SPECTRUM OF THREE-LEVEL SYSTEMS[J]. Acta Physica Sinica, 1991, 40(10): 1717-1722 |
| |
| Authors: | LI GENG-YING and WU XUE-WEN |
| |
| Abstract: | A Z echo NMR pulse sequence is proposed for using in measurement of pure dipole or quadrupole spectrum. The Z echo NMR powder lineshape is not only independent of chemical shielding anisotropy but also, under strong radio-frequency field condition, independent of rf field inhomogeneity. This method is superior obviously to nutation NMR technique. The conclusions were analyzed theoretically and confirmed by experimental results. |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《物理学报》浏览原始摘要信息 |
|
点击此处可从《物理学报》下载免费的PDF全文 |
|
