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Some aspects of polarisation transfer in NMR spectroscopy
Harri Koskela
Luonnontieteellinen tiedekunta, Luonnontieteellinen tiedekunta, Oulun yliopisto
Luonnontieteellinen tiedekunta, Kemian laitos, Oulun yliopisto
Academic Dissertation to be presented with the assent of the Faculty of Science, University of Oulu, for public discussion in Raahensali (Auditorium L10), Linnanmaa, on August 12th, 2005, at 12 noon
Copyright © 2005
Oulun yliopisto
Esitarkastajat
Professori Arto Annila
Professori Reino Laatikainen
OULUN YLIOPISTO, OULU 2005
ISBN 951-42-7798-8 (PDF)
ISSN 1796-220X (Online)
URN:ISBN:9514277988
Abstract
Modern NMR methods in liquids are based on the transfer of polarisation from nucleus to nucleus to generate multidimensional heteronuclear correlation spectra. The factors that influence the efficiency of heteronuclear polarisation transfer in multi-pulse experiments, and in that way the quality of spectra are the subject of this thesis. The flow of coherence through pulse sequences can be designed and analysed with the aid of product operator calculations. Results of the study include improvements to quantitative two-dimensional shift-correlated experiments, and demonstration of the benefits of closely spaced 180° pulse trains in polarisation transfer steps in long-range correlation experiments and isotope editing filters.
Asiasanat: Carr-Purcell-Meiboom-Gill sequences, Hartmann-Hahn transfer, Quantitative 2D NMR, RF pulse imperfections
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Julkaistu painettuna:
 | Acta Universitatis Ouluensis Scientiae Rerum Naturalium A 442 ISBN 951-42-7797-X ISSN 0355-3191 |
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