节点文献
分子间多量子相干谱中溶剂峰的抑制
Solvent Suppression in Intermolecular Multiple-Quantum Coherence Spectra
【Author】 FENG Hai~(1,2) FENG Ji~2 CAI Shu-hui~1 CHEN Zhong~1 ~1 Department of Physics,Xiamen University,Xiamen,Fujian 361005,China ~2 Institute of Physics,Chinese Academy of Sciences,Beijing 100080,China
【机构】 厦门大学物理系; 中国科学院物理研究所;
【摘要】 <正>核自旋之间的远程偶极相互作用也称为远程偶极场(DDF)效应。分子间多量子相干正是由 DDF 效应产生。分子间多量子相干的特性,已经被成功应用于磁共振成像及高分辨核磁共振等领域。然而,分子间多量子相干谱的分辨常受到强溶剂信号的影响。目前常见的抑
【Abstract】 Intermolecular dipolar couplings between distant spins are also referred to as distant dipolar field(DDF)effects,It is the source of intermolecular multiple-quantum coherences(iMQCs). The special iMQC properties have armored growing interest in magnetic resonance imaging(MRI) and high-resolution NMR.However,the resolution of iMQC spectra is often influenced by strong solvent peak.Normally the solvent peak is suppressed by applying correlation gradients or spinning sample along the magic-angle direction,In this report,we proposed a modified three pulse sequence with proper flip angles and phase cycling to suppress the solvent peak.
- 【会议录名称】 第十四届全国波谱学学术会议论文摘要集
- 【会议名称】第十四届全国波谱学学术会议
- 【会议时间】2006-10
- 【会议地点】中国陕西西安
- 【分类号】O561
- 【主办单位】中国物理学会波谱专业委员会