High-field QCPMG NMR of large quadrupolar patterns using resistive magnets.
作者： Ivan Hung , Kiran Shetty , Paul D. Ellis , William W. Brey , Zhehong Gan
DOI: 10.1016/J.SSNMR.2009.10.001
关键词:
摘要: Abstract Spectroscopy in a high magnetic field reduces second-order quadrupolar shift while increasing chemical shift. It changes the scale between and of half-integer spins. The application QCPMG multiple echo for acquiring large pattern under 25 T resistive magnet is presented patterns. shows that temporal fluctuations spatial homogeneity Keck at NHMFL contribute about ±20 ppm line broadening. NMR patterns which have breadths hundreds to thousands kilohertz can be efficiently recorded using combination stepping with negligible hindrance from inhomogeneity powered magnets.
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