Signal amplification by reversible exchange (SABRE) is an emerging nuclear spin hyperpolarization technique that strongly enhances NMR signals of small molecules in solution. However, such signal enhancements have never been exploited for concentration determination, as the efficiency of SABRE can strongly vary between different substrates or even between nuclear spins in the same molecule. The first application of SABRE for the quantitative analysis of a complex mixture is now reported. Despite the inherent complexity of the system under investigation, which involves thousands of competing binding equilibria, analytes at concentrations in the low micromolar range could be quantified from single-scan SABRE spectra using a standard-addition approach.
LIGHT-SABRE enables efficient in-magnet catalytic hyperpolarization
From The DNP-NMR Blog:
LIGHT-SABRE enables efficient in-magnet catalytic hyperpolarization
Theis, T., et al., LIGHT-SABRE enables efficient in-magnet catalytic hyperpolarization. J Magn Reson, 2014. 248C(0): p. 23-26.
http://www.ncbi.nlm.nih.gov/pubmed/25299767
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11-08-2014 12:08 AM
Toward nanomolar detection by NMR through SABRE hyperpolarization
From The DNP-NMR Blog:
Toward nanomolar detection by NMR through SABRE hyperpolarization
Eshuis, N., et al., Toward nanomolar detection by NMR through SABRE hyperpolarization. J Am Chem Soc, 2014. 136(7): p. 2695-8.
http://www.ncbi.nlm.nih.gov/pubmed/24475903
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05-09-2014 07:01 PM
[NMR paper] Quantitative Quantum Mechanical Spectral Analysis (qQMSA) of (1)H NMR spectra of complex mixtures and biofluids.
Quantitative Quantum Mechanical Spectral Analysis (qQMSA) of (1)H NMR spectra of complex mixtures and biofluids.
Related Articles Quantitative Quantum Mechanical Spectral Analysis (qQMSA) of (1)H NMR spectra of complex mixtures and biofluids.
J Magn Reson. 2014 Feb 18;242C:67-78
Authors: Tiainen M, Soininen P, Laatikainen R
Abstract
The quantitative interpretation of (1)H NMR spectra of mixtures like the biofluids is a demanding task due to spectral complexity and overlap. Complications may arise also from water suppression, T2-editing,...
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03-14-2014 06:40 AM
[NMR paper] Quantitative Quantum Mechanical Spectral Analysis (qQMSA) of 1H NMR Spectra of Complex Mixtures and Biofluids
Quantitative Quantum Mechanical Spectral Analysis (qQMSA) of 1H NMR Spectra of Complex Mixtures and Biofluids
Publication date: Available online 18 February 2014
Source:Journal of Magnetic Resonance</br>
Author(s): Mika Tiainen , Pasi Soininen , Reino Laatikainen</br>
The quantitative interpretation of 1H NMR spectra of mixtures like the biofluids is a demanding task due to spectral complexity and overlap. Complications may arise also from water suppression, T2-editing, protein interactions, relaxation differences of the species, experimental artifacts and,...
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02-19-2014 03:12 PM
TowardNanomolar Detection by NMR Through SABRE Hyperpolarization
TowardNanomolar Detection by NMR Through SABRE Hyperpolarization
Nan Eshuis, Niels Hermkens, Bram J. A. van Weerdenburg, Martin C. Feiters, Floris P. J. T. Rutjes, Sybren S. Wijmenga and Marco Tessari
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja412994k/aop/images/medium/ja-2013-12994k_0006.gif
Journal of the American Chemical Society
DOI: 10.1021/ja412994k
http://feeds.feedburner.com/~ff/acs/jacsat?d=yIl2AUoC8zA
http://feeds.feedburner.com/~r/acs/jacsat/~4/CRRo27dOPlc
Ultrafast quantitative 2D NMR: an efficient tool for the measurement of specific isotopic enrichments in complex biological mixtures.
Ultrafast quantitative 2D NMR: an efficient tool for the measurement of specific isotopic enrichments in complex biological mixtures.
Ultrafast quantitative 2D NMR: an efficient tool for the measurement of specific isotopic enrichments in complex biological mixtures.
Anal Chem. 2011 Apr 15;83(8):3112-9
Authors: Giraudeau P, Massou S, Robin Y, Cahoreau E, Portais JC, Akoka S
Two-dimensional nuclear magnetic resonance (2D NMR) is a promising tool for studying metabolic fluxes by measuring (13)C-enrichments in complex mixtures of (13)C-labeled...
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08-04-2011 11:41 AM
Analysis of complex mixtures using high-resolution nuclear magnetic resonance spectroscopy and chemometrics
Analysis of complex mixtures using high-resolution nuclear magnetic resonance spectroscopy and chemometrics
Publication year: 2011
Source: Progress in Nuclear Magnetic Resonance Spectroscopy, In Press, Accepted Manuscript, Available online 12 May 2011</br>
James S., McKenzie , James A., Donarski , Julie C., Wilson , Adrian J., Charlton</br>
*Highlights:*? Analysis of complex mixtures using NMR spectroscopy. ? Use of chemometrics for interpretation of spectra. ? Review of sample handling approaches. ? Discussion of spectral processing methods. ? Discussion of supervised and...
Quantitative Trace Analysis of Complex Mixtures Using SABRE Hyperpolarization
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