Surface Enhanced NMR Spectroscopy by Dynamic Nuclear Polarization
Surface Enhanced NMR Spectroscopy by Dynamic Nuclear Polarization
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DOI：
10.1021/ja104771z
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发表时间：
2010-11-10
影响因子：
15
通讯作者：
Emsley, Lyndon
中科院分区：
文献类型：
--
作者：
Lesage, Anne;Lelli, Moreno;Emsley, Lyndon
结果表明，使用动态核极化可以大大增强表面核磁共振谱。极化从溶剂的质子转移到表面的稀有原子核（此处为天然同位素丰度的碳-13），使共价结合到二氧化硅框架中的表面物质的信号增强至少 50 倍。
It is shown that surface NMR spectra can be greatly enhanced using dynamic nuclear polarization. Polarization is transferred from the protons of the solvent to the rare nuclei (here carbon-13 at natural isotopic abundance) at the surface, yielding at least a 50-fold signal enhancement for surface species covalently incorporated into a silica framework.