期刊
JOURNAL OF MAGNETIC RESONANCE
卷 196, 期 1, 页码 78-83出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jmr.2008.09.022
关键词
BPPSTE; Excitation sculpting; Water suppression signal; 2D DOSY; Complex mixtures
资金
- Association pour la Recherche sur le Cancer (France)
The Bipolar Pulse Pair Stimulated Echo NMR pulse sequence was modified to blend the original Excitation Sculpting water signal suppression. The sequence is a powerful tool to generate rapidly, with a good spectrum quality, bidimensional DOSY experiments without solvent signal, thus allowing the analysis of complex mixtures Such as plant extracts or biofluids. The sequence has also been successfully implemented for a protein at very-low concentration in interaction with a small ligand, namely the salivary IB5 protein binding the polyphenol epigallocatechine gallate. The artifacts created by this sequence can be observed, checked and removed thanks to NPK and NMRnotebook softwares to give a perfect bidimensional DOSY spectrum. (C) 2008 Elsevier Inc. All rights reserved.
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