选择性激发技术在偶合常数精确测量中的应用

波谱学杂志 ›› 1997, Vol. 14 ›› Issue (1): 69-75.

选择性激发技术在偶合常数精确测量中的应用

缪希茄, 张晓东, 李丽云, 叶朝辉

中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室, 武汉 430071

收稿日期:1996-07-26 修回日期:1996-09-25 出版日期:1997-02-05 发布日期:2018-01-22
基金资助:
国家自然科学基金资助项目

APPLICATION OF SELECTIVE EXCITATION NMR TECHNIQUE WITH GAUSSIAN SOFT PULSE TO THE ACCURATE MEASUREMENT OF J COUPLING CONSTANTS

Miao Xijia, Zhang Xiaodong, Li Liyun, Ye Chaohui

State Key Laboratory of Magnetic Resonance, Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan 430071

Received:1996-07-26 Revised:1996-09-25 Online:1997-02-05 Published:2018-01-22

摘要/Abstract

摘要： 采用基于简单Gaussian软脉冲的选择性激发技术来获得自旋系统的一维反相磁化分裂峰,并结合J-Doubling方法来精确测量该分裂峰的J偶合常数,对于重叠分裂峰或者线宽大、偶合分裂小的谱峰的J偶合常数的精确测量,该方法尤其适合.

关键词: Gaussian软脉冲, 选择性激发, 偶合常数的测量, J-Doubling

Abstract: The selective excitation NMR technique with Gaussian soft pulse has been used to record one-dimensional antiphase magnetization spectrum. The antiphase spectrum can be employed further to accurately measure J coupling constant by combining J-Doubling method. This measurement of J coupling constant is suitable particularly for overlapping multiplets and those with large spectra llinewidth and small coupling splitting.

Key words: Gaussian soft pulse, Selective excitation, Measurement of J coupling, J-Doubling

缪希茄, 张晓东, 李丽云, 叶朝辉. 选择性激发技术在偶合常数精确测量中的应用[J]. 波谱学杂志, 1997, 14(1): 69-75.

Miao Xijia, Zhang Xiaodong, Li Liyun, Ye Chaohui. APPLICATION OF SELECTIVE EXCITATION NMR TECHNIQUE WITH GAUSSIAN SOFT PULSE TO THE ACCURATE MEASUREMENT OF J COUPLING CONSTANTS[J]. Chinese Journal of Magnetic Resonance, 1997, 14(1): 69-75.