Practical considerations for rapid and quantitative NMR-based metabolomics

Frans A.A. Mulder*, Leonardo Tenori, Cristina Licari, Claudio Luchinat*

*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

7 Citations (Scopus)

Abstract

NMR is a key technology for metabolomics because of its robustness and reproducibility. Herein we discuss practical considerations that extend the utility of NMR spectroscopy. First, the long T1 spin relaxation times of small molecules limits high-throughput data acquisition because most experimental time is lost while waiting for signal recovery. In principle, the addition of a small amount of commercially-available paramagnetic gadolinium chelate allows cost-effective and efficient high-throughput mixture analysis with correct concentration determination. However, idle time caused by slow temperature regulation during sample exchanges, poses a next constraint. We show how, with proper care, NMR sample scanning times can be reduced additionally by a factor of two. Lastly, we describe how equidistant bucketing is a simple and fast procedure for metabolomic fingerprinting. The combination of these advancements help to make NMR metabolomics more versatile than it is today.

Original languageEnglish
Article number107462
JournalJournal of Magnetic Resonance
Volume352
Number of pages10
ISSN1090-7807
DOIs
Publication statusPublished - Jul 2023
Externally publishedYes

Keywords

  • bucketing
  • Metabolomics
  • NMR data acquisition
  • paramagnetic NMR
  • Temperature stabilization

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