1
|
Dumez JN. NMR methods for the analysis of mixtures. Chem Commun (Camb) 2022; 58:13855-13872. [PMID: 36458684 PMCID: PMC9753098 DOI: 10.1039/d2cc05053f] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 10/19/2022] [Indexed: 07/31/2023]
Abstract
NMR spectroscopy is a powerful approach for the analysis of mixtures. Its usefulness arises in large part from the vast landscape of methods, and corresponding pulse sequences, that have been and are being designed to tackle the specific properties of mixtures of small molecules. This feature article describes a selection of methods that aim to address the complexity, the low concentrations, and the changing nature that mixtures can display. These notably include pure-shift and diffusion NMR methods, hyperpolarisation methods, and fast 2D NMR methods such as ultrafast 2D NMR and non-uniform sampling. Examples or applications are also described, in fields such as reaction monitoring and metabolomics, to illustrate the relevance and limitations of different methods.
Collapse
|
2
|
Piersanti E, Righetti C, Ribeaucourt D, Simaan AJ, Mekmouche Y, Lafond M, Berrin JG, Tron T, Yemloul M. 2D and 3D maximum-quantum NMR and diffusion spectroscopy for the characterization of enzymatic reaction mixtures. Analyst 2022; 147:2515-2522. [DOI: 10.1039/d2an00200k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using MaxQ-NMR, we characterized enzymatic reaction mixtures containing several compounds (substrate, final product, and various intermediates). This approach enables, in a first analytical step, the counting of the molecules present in the samples.
Collapse
Affiliation(s)
- Elena Piersanti
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Claudio Righetti
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - David Ribeaucourt
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
- INRAE, Aix Marseille Univ, UMR1163 Biodiversité et Biotechnologie Fongiques, 13009, Marseille, France
- V. Mane Fils, 620 route de Grasse, 06620 Le Bar sur Loup, France
| | - A. Jalila Simaan
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Yasmina Mekmouche
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Mickael Lafond
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Jean-Guy Berrin
- INRAE, Aix Marseille Univ, UMR1163 Biodiversité et Biotechnologie Fongiques, 13009, Marseille, France
| | - Thierry Tron
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Mehdi Yemloul
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| |
Collapse
|
3
|
Day IJ. Matrix-assisted DOSY. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2020; 116:1-18. [PMID: 32130955 DOI: 10.1016/j.pnmrs.2019.09.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/30/2019] [Accepted: 09/01/2019] [Indexed: 06/10/2023]
Abstract
The analysis of mixtures by NMR spectroscopy is challenging. Diffusion-ordered NMR spectroscopy enables a pseudo-separation of species based on differences in their translational diffusion coefficients. Under the right circumstances, this is a powerful technique; however, when molecules diffuse at similar rates separation in the diffusion dimension can be poor. In addition, spectral overlap also limits resolution and can make interpretation challenging. Matrix-assisted diffusion NMR seeks to improve resolution in the diffusion dimension by utilising the differential interaction of components in the mixture with an additive to the solvent. Tuning these matrix-analyte interactions allows the diffusion resolution to be optimised. This review presents the background to matrix-assisted diffusion experiments, surveys the wide range of matrices employed, including chromatographic stationary phases, surfactants and polymers, and demonstrates the current state of the art.
Collapse
Affiliation(s)
- Iain J Day
- School of Life Sciences, University of Sussex, Falmer, Brighton BN1 9QJ, UK.
| |
Collapse
|
4
|
Topgaard D. Multiple dimensions for random walks. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2019; 306:150-154. [PMID: 31307891 DOI: 10.1016/j.jmr.2019.07.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 06/07/2019] [Accepted: 07/08/2019] [Indexed: 06/10/2023]
Abstract
Current trends in diffusion NMR and MRI methods development are reviewed. While great efforts are still directed towards further improving the spectral, spatial, and relaxation rate resolution of basic diffusion measurements, recent improvements in magnetic field gradient technology on whole-body scanners have enabled an exciting line of research involving MRI implementations of advanced diffusion NMR methods with motion-encoding gradient waveforms designed for multidimensional separation and correlation of properties like short-time diffusivity, restriction, anisotropy, flow, and exchange, thereby opening up for highly specific characterization of microstructure and heterogeneity in healthy and diseased tissues in a clinical setting.
Collapse
|
5
|
Manjunatha Reddy GN, Mannina L, Sobolev AP, Caldarelli S. Polyphenols Fingerprinting in Olive Oils Through Maximum-Quantum NMR Spectroscopy. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-1069-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
6
|
Reile I, Aspers RLEG, Feiters MC, Rutjes FPJT, Tessari M. Resolving DOSY spectra of isomers by methanol-d 4 solvent effects. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2017; 55:759-762. [PMID: 28219117 DOI: 10.1002/mrc.4587] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 01/17/2017] [Accepted: 01/22/2017] [Indexed: 06/06/2023]
Affiliation(s)
- Indrek Reile
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6526AJ, The Netherlands
| | - Ruud L E G Aspers
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6526AJ, The Netherlands
| | - Martin C Feiters
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6526AJ, The Netherlands
| | - Floris P J T Rutjes
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6526AJ, The Netherlands
| | - Marco Tessari
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6526AJ, The Netherlands
| |
Collapse
|