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A pulsed NMR study of water and alkali ions in heterogeneous biological systems.

By Hommo Tjarko Edzes


In this thesis studies are described in which pulsed NMR techniques have been used to study the nuclear magnetic relaxation behavior of the nuclei of water and of alkali ions in biological systems. It is of importance in the study of biological systems to keep the total measuring time short; in general, samples are not very stable in time. In addition the NMR signals from biological samples are often weak. Special attention was therefore paid to the improvement of the signal-to-noise ratio of the NMR signals in a short total measuring time. In particular signal averaging of the NMR signals was used and, the pulse sequences, with which the nuclear magnetic relaxation rates are measured, are selected primarily to obtain the maximum amount of measurable signal in a given time span. ... Zie: Summary

Year: 1976
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