期刊
JOURNAL OF MAGNETIC RESONANCE
卷 190, 期 1, 页码 1-6出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jmr.2007.09.016
关键词
Pre-SAT180; NMR; water suppression; pre-saturation; metabolomics; urine metabolomics
资金
- NIDDK NIH HHS [R21 DK070290-01, R21 DK070290, 3 R21 DK070290-01] Funding Source: Medline
- NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES [R21DK070290] Funding Source: NIH RePORTER
Water located outside the NMR detection coil experiences a reduced RF field intensity. This '' faraway water '' is known to be very difficult to suppress and often gives rise to a large residual solvent signal. Pre-SAT180 (Pre-Saturation with Adiabatic Toggling of 180 degree pulse inversion) is proposed to cancel the residual water contribution efficiently. Compared with several popular methods such as 1D NOESY with pre-saturation or 270 excitation, Pre-SATI80 has a number of advantages, including: full retention of signal intensity and selectivity, good phase properties, easy setup, and high tolerance to pulse missettings. (c) 2007 Elsevier Inc. All rights reserved.
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