Published in

Elsevier, Journal of Magnetic Resonance, (246), p. 69-71, 2014

DOI: 10.1016/j.jmr.2014.06.021

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Determination of sample temperature in unstable static fields by combining solid-state 79Br and 13C NMR

Journal article published in 2014 by Rudra N. Purusottam, Geoffrey Bodenhausen, Piotr Tekely
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

: Monitoring the isotropic chemical shifts to calibrate the sample temperature presupposes a perfect stability of the static magnetic field. It can be difficult to satisfy this requirement in solid-state NMR measurements. This paper describes a simple way to recover the accurate temperature dependence of the (79)Br resonance after subtracting changes of resonance frequency due to variations of the static field, monitored by the (13)C resonance.