High-resolution absorptive intermolecular multiple-quantum coherence NMR spectroscopy under inhomogeneous fields

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	High-resolution absorptive intermolecular multiple-quantum coherence NMR spectroscopy under inhomogeneous fields
	Lin, Meijin ; Lin, Yanqin ; Chen, Xi ; Cai, Shuhui ; Chen, Zhong ; Cai SH(蔡淑惠)
刊名	http://dx.doi.org/10.1016/j.jmr.2011.12.003
	2012-01
关键词	EX-SITU NMR SOLVENT SUPPRESSION J-SPECTRA WATER
英文摘要	NNSF of China [10974164, 11074209, 11105114]; Fundamental Research Funds for the Central Universities [2010121010]; Research Fund for the Doctoral Program of Higher Education of China [200803840019]; Intermolecular multiple-quantum coherence (iMQC) is capable of improving NMR spectral resolution using a 2D shearing manipulation method. A pulse sequence termed CT-iDH, which combines intermolecular double-quantum filter (iDQF) with a modified constant-time (CT) scheme, is designed to achieve fast acquisition of high-resolution intermolecular zero-quantum coherences (iZQCs) and intermolecular double-quantum coherences (iDQCs) spectra without strong coupling artifacts. Furthermore, double-absorption lineshapes are first realized in 2D intermolecular multi-quantum coherences (iMQCs) spectra under inhomogeneous fields through a combination of iZQC and iDQC signals to double the resolution without loss of sensitivity. Theoretically the spectral linewidth can be further reduced by half compared to original iMQC high-resolution spectra. Several experiments were performed to test the feasibility of the new method and the improvements are evaluated quantitatively. The study suggests potential applications for in vivo spectroscopy. (C) 2011 Elsevier Inc. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/69822]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Lin, Meijin,Lin, Yanqin,Chen, Xi,et al. High-resolution absorptive intermolecular multiple-quantum coherence NMR spectroscopy under inhomogeneous fields[J]. http://dx.doi.org/10.1016/j.jmr.2011.12.003,2012.
APA	Lin, Meijin,Lin, Yanqin,Chen, Xi,Cai, Shuhui,Chen, Zhong,&蔡淑惠.(2012).High-resolution absorptive intermolecular multiple-quantum coherence NMR spectroscopy under inhomogeneous fields.http://dx.doi.org/10.1016/j.jmr.2011.12.003.
MLA	Lin, Meijin,et al."High-resolution absorptive intermolecular multiple-quantum coherence NMR spectroscopy under inhomogeneous fields".http://dx.doi.org/10.1016/j.jmr.2011.12.003 (2012).