Fast high-resolution nuclear magnetic resonance spectroscopy through indirect zero-quantum coherence detection in inhomogeneous fields

Han Ping Ke, Hao Chen, Yan Qin Lin, Zhi Liang Wei, Shu Hui Cai, Zhi Yong Zhang, Zhong Chen

Research output: Contribution to journalArticlepeer-review

Abstract

In many cases, high-resolution nuclear magnetic resonance (NMR) spectra are virtually impossible to obtain by conventional nuclear magnetic resonance methods because of inhomogeneity of magnetic field and inherent heterogeneity of sample. Although conventional intramolecular zero-quantum coherence (ZQC) can be used to obtain high-resolution spectrum in inhomogeneous field, the acquisition takes rather long time. In this paper, a spatially encoded intramolecular ZQC technique is proposed to fast acquire high-resolution NMR spectrum in inhomogeneous field. For the first time, the gradient-driven decoding technique is employed to selectively acquire intramolecular ZQC signals. Theoretical analyses and experimental observations demonstrate that high-resolution NMR spectral information can be retrieved within several scans even when the field inhomogeneity is severe enough to erase most spectral information. This work provides a new way to enhance the acquisition efficiency of high-resolution intramolecular ZQC spectroscopy in inhomogeneous fields.

Original languageEnglish (US)
Article number063201
JournalChinese Physics B
Volume23
Issue number6
DOIs
StatePublished - Jun 2014
Externally publishedYes

Keywords

  • inhomogeneous magnetic fields
  • intramolecular zero-quantum coherence
  • nuclear magnetic resonance
  • spatial encoding

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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