脉冲梯度增强技术的初步研究  

PRELIMINARY STUDY OF PULSE GRADIENT-ENHANCEDHIGH-RESOLUTION NMR TECHNIQUE

作　　者：吴先球[1] 边明华[1] 李向红 李晓勇 邬学文[1] 

机构地区：[1]华东师范大学分析测试中心

出　　处：《波谱学杂志》1996年第2期169-176,共8页Chinese Journal of Magnetic Resonance

基　　金：国家自然科学基金;国家教委博士点基金

摘　　要：自行研制一套脉冲梯度场系统，配合Ｂｒｕｋｅｒ公司ＭＳＬ３００谱仪研究脉冲梯度增强的高分辨核磁共振，研制以ＰＣ／２８６为核心的梯度脉冲波形和幅度可任意调节的梯度场发生器；改装谱仪的１Ｈ液体探头、增加梯度场线图．分析了脉冲梯度场产生的涡流磁场的影响；报道了利用自制梯度场系统进行的脉冲梯度增强的高分辨ＣＯＳＹ实验。A pulse gradient field instrument for pulse gradient-enhanced high-resolution NMR was developed on Bruker MSL 300 spectrometer. The system was composed of a modified 1H liquid probe and a PC-controlled pulse gradient field generator whose waveform and amplitude can be arbitrarily set. The eddy-current effect caused by the gradient field was analyzed and a gradient-enhanced COSY experiment was also carried out to test this instrument.

关 键 词：脉冲梯度场 高分辨 NMR COSY 

分 类 号：O482.532[理学—固体物理]