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Practical considerations for rapid and quantitative NMR-based metabolomics. | LitMetric

Practical considerations for rapid and quantitative NMR-based metabolomics.

J Magn Reson

Magnetic Resonance Center (CERM) and Department of Chemistry "Ugo Schiff", University of Florence, Sesto Fiorentino, Florence, Italy; Consorzio Interuniversitario Risonanze Magnetiche di Metallo Proteine (CIRMMP), Sesto Fiorentino, Florence, Italy; GiottoBiotech s.r.l., Sesto Fiorentino, Florence, Italy. Electronic address:

Published: July 2023

AI Article Synopsis

  • * By using a small amount of gadolinium chelate, researchers can enhance high-throughput analysis and accurately determine concentrations, though slow sample temperature regulation still poses challenges.
  • * Implementing techniques like reducing scanning times and using equidistant bucketing for metabolomic fingerprinting can significantly improve the efficiency and versatility of NMR in metabolomics.

Article 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 T 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.

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Source
http://dx.doi.org/10.1016/j.jmr.2023.107462DOI Listing

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