Literature DB >> 17920317

Removal of t(1) noise from metabolomic 2D (1)H-(13)C HSQC NMR spectra by Correlated Trace Denoising.

Simon Poulding1, Adrian J Charlton, James Donarski, Julie C Wilson.   

Abstract

The presence of t(1) noise artefacts in 2D phase-cycled Heteronuclear Single Quantum Coherence (HSQC) spectra constrains the use of this experiment despite its superior sensitivity. This paper proposes a new processing algorithm, working in the frequency-domain, for reducing t(1) noise. The algorithm has been developed for use in contexts, such as metabolomic studies, where existing denoising techniques cannot always be applied. Two test cases are presented that show the algorithm to be effective in improving the SNR of peaks embedded within t(1) noise by a factor of more than 2, while retaining the intensity and shape of genuine peaks.

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Year:  2007        PMID: 17920317     DOI: 10.1016/j.jmr.2007.09.004

Source DB:  PubMed          Journal:  J Magn Reson        ISSN: 1090-7807            Impact factor:   2.229


  2 in total

1.  A simple method for NMR t1 noise suppression.

Authors:  Huaping Mo; John S Harwood; Danzhou Yang; Carol Beth Post
Journal:  J Magn Reson       Date:  2016-12-29       Impact factor: 2.229

2.  Measurement of absolute concentrations of individual compounds in metabolite mixtures by gradient-selective time-zero 1H-13C HSQC with two concentration references and fast maximum likelihood reconstruction analysis.

Authors:  Kaifeng Hu; James J Ellinger; Roger A Chylla; John L Markley
Journal:  Anal Chem       Date:  2011-11-15       Impact factor: 6.986

  2 in total

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