Sensitivity enhancement of the MQMAS NMR experiment by fast amplitude modulation of the pulses

P. K. Madhu*, Amir Goldbourt, Lucio Frydman, Shimon Vega

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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 are considerably stronger (≈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 23Na and 87Rb nuclei as examples are presented that corroborate the usefulness of this approach.

Original languageEnglish
Pages (from-to)41-47
Number of pages7
JournalChemical Physics Letters
Volume307
Issue number1-2
DOIs
StatePublished - 25 Jun 1999
Externally publishedYes

Fingerprint

Dive into the research topics of 'Sensitivity enhancement of the MQMAS NMR experiment by fast amplitude modulation of the pulses'. Together they form a unique fingerprint.

Cite this