FOURIER TRANSFORM NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY

摘要

Improved NMR spectroscopy is realized by selectively positioning a spectrum excitation pulse with respect to the spectrum of frequencies to be observed. The excitation pulse may be positioned at a frequency anywhere within or outside the spectrum of interest as required. This is achieved by relating the excitation pulse to a reference signal having a frequency other than the excitation frequency and by maintaining a fixed phase relationship between the excitation pulse and the reference signal.