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用于提高相敏 J 分辨光谱中灵敏度和分辨率的实时带选择性同核质子去耦

Real-time band-selective homonuclear proton decoupling for improving sensitivity and resolution in phase-sensitive J-resolved spectroscopy.

作者信息

Verma Ajay, Baishya Bikash

机构信息

Centre of Biomedical Research (Formerly Centre of Biomedical Magnetic Resonance), SGPGIMS Campus, Raebareli Road, Lucknow-226014, U. P. (India), Fax: (+91) 522-2668215.

出版信息

Chemphyschem. 2015 Aug 24;16(12):2687-91. doi: 10.1002/cphc.201500377. Epub 2015 Jul 14.

DOI:10.1002/cphc.201500377
PMID:26175136
Abstract

Real-time band-selective homonuclear (1) H decoupling during data acquisition of z-filtered J-resolved spectroscopy produces (1) H-decoupled (1) H NMR spectra and leads to sensitivity enhancement and improved resolution, and thus aids the measurement of J couplings and residual dipolar couplings in crowded regions of (1) H NMR spectrum. High quality spectra from peptides, organic molecules, and also from enantiomers dissolved in weakly aligned chiral media are reported.

摘要

在z滤波J分辨光谱的数据采集过程中进行实时带选择性同核¹H去耦，可产生¹H去耦的¹H NMR谱，提高灵敏度并改善分辨率，从而有助于测量¹H NMR谱拥挤区域中的J耦合和残余偶极耦合。本文报道了来自肽、有机分子以及溶解在弱取向手性介质中的对映体的高质量光谱。

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引用本文的文献

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A General Method for Extracting Individual Coupling Constants from Crowded (1)H NMR Spectra.一种从拥挤的¹H NMR谱中提取单个耦合常数的通用方法。
Angew Chem Int Ed Engl. 2016 Jan 18;55(3):1090-3. doi: 10.1002/anie.201508691. Epub 2015 Dec 4.