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High-resolution NMR spectra in inhomogeneous and unstable fields via three-pulse method
Ling Peng,Zhenyao Zheng,Zhenmin Zhang,Shuhui Cai,Zhong Chen * #
Department of Physics, Xiamen University, Xiamen, Fujian 361005
*Correspondence author
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Funding: 国家自然科学基金,国家自然科学基金,国家科技支撑计划,教育部博士点基金（No.10774125;10875101;2006BAK03A22;200803840019）
Opened online: 4 August 2009
Accepted by: none
Citation: Ling Peng,Zhenyao Zheng,Zhenmin Zhang.High-resolution NMR spectra in inhomogeneous and unstable fields via three-pulse method[OL]. [ 4 August 2009] http://en.paper.edu.cn/en_releasepaper/content/34255
 
 
In modern solution nuclear magnetic resonance (NMR), the spectral resolution is closely related to the spatial homogeneity and temporal stability of the magnetic field. The spectral linewidths are usually proportional to the overall field homogeneity and stability experienced by the sample. Recently, many high-resolution NMR methods have been developed, but few of them are applicable in inhomogeneous and unstable fields. In this paper, a high-resolution three-pulse method based on intermolecular zero-quantum coherences (iZQCs) was proposed. This method is insensitive to field inhomogeneity and unstability, so the spectral information such as chemical shift can be retained in the resulting spectra. Compared to the CPMG-HOMOGENIZED method, this method can give almost pure iZQC signals.
Keywords:Nuclear magnetic resonance;High-resolution;Inhomogeneous field;Unstable field; Intermolecular zero-quantum coherence;Three-pulse sequence
 
 
 

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