【摘要】 在FX-100核磁共振波谱仪上建立了MLEV-16宽带去耦系统.对去耦电路的各级信号进行了分析,说明了MLEV-16去耦电略的控制关系.利用去耦电路实现了由计算机和可编程序器控制的宽带去耦,用波谱仪原有去耦功率作了¹³C{F¹⁹}氟宽带去耦的碳-13谱的观测,去耦范围达12.4kHz,可以满足大部分有机氟化物的¹³C核磁共振研究。更多还原

【Abstract】 A MLEV-16 broadband decoupling system was established on an FX-100 NMR spec- trometer. The signal waveforms of different levels are analyzed to illustrate the controlling relationship of the decoupling ciucuit.Broadband decoupling controlled by microcomputer and programmable controller had been performed. The ¹³C spectrum of ¹³C {¹⁹F} was observed by fluorine broadband decoupling with the original decoupling power of FX-100 NMR spectrometer. The decoupling range can reach 12.4 kHz. The NMR study of ¹³C in most organic fluorine compounds can be realized with this system.更多还原