Simultaneous Detection of H and D NMR Signals in a Micro-Tesla Field

We present NMR spectra of remote-magnetized deuterated water, detected in an unshielded environment by means of a differential atomic magnetometer. The measurements are performed in a μT field, while pulsed techniques are appliedfollowing the sample displacementin a 100 μT field, to tip both D and...

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Bibliographic Details
Published in:The journal of physical chemistry letters 2017-12, Vol.8 (24), p.6176-6179
Main Authors: Bevilacqua, Giuseppe, Biancalana, Valerio, Dancheva, Yordanka, Vigilante, Antonio, Donati, Alessandro, Rossi, Claudio
Format: Article
Language:English
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Summary:We present NMR spectra of remote-magnetized deuterated water, detected in an unshielded environment by means of a differential atomic magnetometer. The measurements are performed in a μT field, while pulsed techniques are appliedfollowing the sample displacementin a 100 μT field, to tip both D and H nuclei by controllable amounts. The broad-band nature of the detection system enables simultaneous detection of the two signals and accurate evaluation of their decay times. The outcomes of the experiment demonstrate the potential of ultra-low-field NMR spectroscopy in important applications where the correlation between proton and deuteron spin–spin relaxation rates as a function of external parameters contains significant information.
ISSN:1948-7185
1948-7185
DOI:10.1021/acs.jpclett.7b02854