| 分子间多量子相干横向弛豫时间(和自扩散系数)测量的参数优化和数据处理方法 |
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| 引用本文： | 郑绍宽,陈忠,陈志伟,廖新丽. 分子间多量子相干横向弛豫时间(和自扩散系数)测量的参数优化和数据处理方法[J]. 波谱学杂志, 2001, 18(3): 281-289 |
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| 作者姓名： | 郑绍宽 陈忠 陈志伟 廖新丽 |
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| 作者单位： | 厦门大学1.物理学系; 2.化学系，厦门 361005 |
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| 基金项目： | 国家自然科学基金资助项目 (1 0 0 0 5 0 0 6和 1 9975 0 3 8)，福建省自然科学基金资助项目 (C991 0 0 0 1 ) |
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| 摘 要： | 针对测量横向弛豫时间T2的CPMG脉冲序列和我们所设计的可同时测量高极化单组份单 峰核自旋体系n阶分子间多量子相干横向弛豫时间T2,n和自扩散系数Dn的改进的CRAZED脉冲序列，分析了影响测量T2、T2,n（或Dn）的各种因素，并着重从技术方面讨论了准确测量T2,n和Dn的实验参数优化和实验数据处理方法.
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| 关 键 词： | 核磁共振 分子间多量子相干 横向弛豫时间 自扩散系数 参数优化 数据处理 |
| 文章编号： | 1000-4556(2001)03-0281-9 |
| 收稿时间： | 2001-05-25 |
| 修稿时间： | 2001-05-25 |
THE OPTIMIZATION OF EXPERIMENTAL PARAMETERAND PROCESSING METHOD OF EXPERIMENTAL DATA FOR MEASUREMENT OF TRANSVERSE RELAXATIONTIME (AND SELF-DIFFUSION COEFFICIENT) OF INTERMOLECULAR MULTIPLE QUANTUM COHERENCES IN NMR |
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| ZHENG Shao kuan+{,},CHEN Zhong+{,},CHEN Zhi wei+ and LIAO Xin li+. THE OPTIMIZATION OF EXPERIMENTAL PARAMETERAND PROCESSING METHOD OF EXPERIMENTAL DATA FOR MEASUREMENT OF TRANSVERSE RELAXATIONTIME (AND SELF-DIFFUSION COEFFICIENT) OF INTERMOLECULAR MULTIPLE QUANTUM COHERENCES IN NMR[J]. Chinese Journal of Magnetic Resonance, 2001, 18(3): 281-289 |
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| Authors: | ZHENG Shao kuan+{ } CHEN Zhong+{ } CHEN Zhi wei+ LIAO Xin li+ |
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| Affiliation: | 1.Dept. of Phys.; 2.Dept of Chem., Xiamen Univ., Xiamen 361005, China |
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| Abstract: | In light of the CPMG pulse sequence , which is used to measure the transverse rel axation timeT2, and of modified CRAZED pulse sequence, which is designe d to simultan eously measure the transverse relaxation time,T2,n and self-diffusi on coefficient ,Dn, of intermolecular multiple quantum coherences (iMQCs) for a highly p olarized spin system with only one type of spin species, all kinds of factors, which will affect the measurement ofT2、T2,n（orDn）, are analyzed. T he processing method of the expe rimental data and the optimization of the experimental parameter for the accurat e measurement ofT2,n andDn of iMQCs are discussed from the point of view of technique. |
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| Keywords: | Nuclear magnetic resonance Intermolecular multiple quantum coherences Transverse relaxation time Self diffusion coefficient Data manipulation Optimization of experimental parameter |
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