The Application of Fourier Transformation to High Resolution Nuclear Magnetic Resonance Spectroscopy

Abstract

Publisher Summary This chapter discusses the application of Fourier transformation to high resolution nuclear magnetic resonance (NMR) spectroscopy. The prospects of sensitivity enhancements, an order of magnitude, greater than those offered by conventional frequency scanned spectra were indicated in the chapter. By the use of Fourier transformation, a change from one domain into another domain and vice versa can be achieved. In the time domain, greater sensitivity can be obtained from NMR experiments than in the more conventional frequency domain. The NMR experiment is concerned with deriving information of chemical interest from a study of the interaction of nuclei with a magnetic field. The requirements for a pulse high resolution meter are (1) transmitter, (2) probe, (3) receiver, (4) pulse programmer, and (5) field frequency lock. The conversion from an analogue to a digital signal is performed by a device called an analogue to digital converter or ADC. The chapter discusses this conversion and the fundamental effects it has on the final spectrum. In addition, the computation and stochastic resonance are also discussed in the chapter. This chapter presents a comparison of the sensitivity achievable by continuous wave, pulse, and stochastic NMR. The chapter concludes with the applications of Fourier transformation.