期刊
CHEMICAL PHYSICS LETTERS
卷 464, 期 1-3, 页码 97-102出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2008.08.095
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资金
- Natural Sciences and Engineering Research Council (NSERC, Canada)
- Canadian Foundation for Innovation
- Ontario Innovation Trust
- Ontario Ministry of Research and Innovation
- University of Windsor
A previously reported quadrupolar spin-echo experiment using adiabatic pulses, which can achieve uniform excitation of quadrupolar nuclei across a wide bandwidth, has been extended to a QCPMG-like sequence exhibiting the same uniform, broadband excitation as the echo experiment but with the advantage of a significant increase in S/N. This WURST-QCPMG sequence is used to obtain static wideline (71)Ga (spin-3/2) and (91)Zr (spin-5/2) spectra with linewidths in excess of 500 kHz, on a standard probe at 9.4 T without any transmitter frequency or field adjustment. The sequence is also used to observe the (59)Co (spin-7/2) central transition and inner satellite transitions. (C) 2008 Elsevier B.V. All rights reserved.
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