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Ultrafast Multidimensional Laplace NMR Using a Single‐Sided Magnet


Laplace NMR (LNMR) consists of relaxation and diffusion measurements providing detailed information about molecular motion and interaction. Here we demonstrate that ultrafast single‐ and multidimensional LNMR experiments, based on spatial encoding, are viable with low‐field, single‐sided magnets with an inhomogeneous magnetic field. This approach shortens the experiment time by one to two orders of magnitude relative to traditional experiments, and increases the sensitivity per unit time by a factor of three. The reduction of time required to collect multidimensional data opens significant prospects for mobile chemical analysis using NMR. Particularly tantalizing is future use of hyperpolarization to increase sensitivity by orders of magnitude, allowed by single‐scan approach.

Ultraschnelle Experimente – eine oder zwei Größenordnungen schneller als klassische Experimente – messen mehrdimensionale NMR‐Relaxationsparameter. Die ultraschnellen Messungen werden unter Verwendung einpoliger Magnete demonstriert und eröffnen neue Möglichkeiten für die Verfolgung schneller Prozesse mit wenigen Einschränkungen bezüglich der Probengröße. SNR=Signal‐Rausch‐Verhältnis.

Authors:   Jared N. King, Vanessa J. Lee, Susanna Ahola, Ville‐Veikko Telkki, Tyler Meldrum
Journal:   Angewandte Chemie
Year:   2016
Pages:   n/a
DOI:   10.1002/ange.201511859
Publication date:   09-Mar-2016
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