| Hadamard技术在不均匀场中获取高分辨核磁共振谱的应用 |
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| 引用本文： | 高凤连,蔡聪波,陈妤姗,黄 悦,黄联芬.Hadamard技术在不均匀场中获取高分辨核磁共振谱的应用[J].现代电子技术,2014(11):57-60,64. |
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| 作者姓名： | 高凤连 蔡聪波 陈妤姗 黄 悦 黄联芬 |
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| 作者单位： | [1]厦门大学,福建厦门361005; [2]集美大学,福建厦门361021 |
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| 摘 要： | 核磁共振(NMR)谱广泛应用于化学,生物和材料科学等领域。分子间多量子相干技术(iMQCs)可以有效地在不均匀磁场中获得高分辨NMR谱,但是该方法获取高分辨谱通常需要较长的数据采集时间,在很大程度上限制了它的应用。Hadamard技术具有时间短和信噪比高的特点,该技术可以较大地缩短不均匀场下采集高分辨NMR谱的时间,因而扩展并增强iMQCs方法在不均匀场下获取高分辨谱的实用性。总结了近几年Hadamard技术结合iMQCs方法在不均匀磁场中获取高分辨NMR谱的基本原理和应用,并对其优缺点做了详细的分析和讨论。
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| 关 键 词： | Hadamard技术 高分辨核磁共振谱 不均匀场 相关谱 |
Application of Hadamard encoding technology for achieving high-resolution NMR spectroscopy in inhomogeneous fields |
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| Affiliation: | GAO Fenglian, CAI Congbo, CHEN Yushan, HUANG Yue, HUANG Lianfen (1. Xiamen University, Xiamen 361005, China; 2. Jimei University, Xiamen 361021, China) |
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| Abstract: | Nuclear magnetic resonance（NMR） spectroscopy has been widely used in chemistry,biology and material science. Intermolecular multiple quantum coherences（iMQCs）has been proven to be effective in retrieving high-resolution spec-tra in inhomogeneous fields. However,relatively long acquisition time limits its practical applications. Hadamard encoding tech-nology can be used to shorten the acquisition time and increase the signal to noise ratio. In this paper,the principle of achieving high-resolution spectroscopy in inhomogeneous fields by combining Hadamard encoding technology with iMQCs is summarized in this paper. Advantages and disadvantages of this method are analized and discussed. |
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| Keywords: | Hadamard encoding technology high-resolution NMR spectroscopy inhomogeneous field correlation spectroscopy |
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