Sensitivity enhancement of the MQMAS NMR experiment by fast amplitude modulation of the pulses. Madhu, P K, Goldbourt, A., Frydman, L., & Vega, S. Chemical Physics Letters, 307(1-2):41–47, June, 1999. ISBN: 0009-2614doi abstract bibtex We report here an improved way of doing the multiple-quantum magic-angle spinning (MQMAS) NMR experiment that relies on the use of amplitude modulated pulses. These pulses were found to yield MQMAS NMR signals that an considerably stronger (approximate to 200-300%) than the ones arising from the usual continuous wave pulse schemes by virtue of a superior efficiency of the triple- to single-quantum conversion process. Numerical simulations and experimental results taking Na-23 and Rb-87 nuclei as examples are presented that corroborate the usefulness of this approach. (C) 1999 Elsevier Science B.V. All rights reserved.
@article{Madhu1999,
title = {Sensitivity enhancement of the {MQMAS} {NMR} experiment by fast amplitude modulation of the pulses},
volume = {307},
issn = {00092614},
doi = {10.1016/S0009-2614(99)00446-7},
abstract = {We report here an improved way of doing the multiple-quantum magic-angle spinning (MQMAS) NMR experiment that relies on the use of amplitude modulated pulses. These pulses were found to yield MQMAS NMR signals that an considerably stronger (approximate to 200-300\%) than the ones arising from the usual continuous wave pulse schemes by virtue of a superior efficiency of the triple- to single-quantum conversion process. Numerical simulations and experimental results taking Na-23 and Rb-87 nuclei as examples are presented that corroborate the usefulness of this approach. (C) 1999 Elsevier Science B.V. All rights reserved.},
number = {1-2},
journal = {Chemical Physics Letters},
author = {Madhu, P K and Goldbourt, Amir and Frydman, Lucio and Vega, Shimon},
month = jun,
year = {1999},
note = {ISBN: 0009-2614},
pages = {41--47},
}
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