National Repository of Grey Literature 27 records found  beginprevious25 - 27  jump to record: Search took 0.00 seconds. 
Determination of polysaccharides structure by spectroscopic methods
Synytsya, A. ; Blafková, P. ; Čopíková, J. ; Spěváček, Jiří
Possibilities of vibrational and NMR spectroscopy in structural characterization of polysaccharides were illustrated on examples of several polysaccharide systems (pectins, chitin, chitosan, chitosan lactate, carrageens, chondroitinsulphate).
NMR spectroscopy: principles and application in chemistry, biology and medicine
Brus, Jiří
History of NMR spectroscopy, current developments and applications are introduced. The main interest is focused to basic subjects of chemistry, structural biology and medicine investigated by NMR spectroscopy.
High resolution multivoxel spectroscopy of human brain at 3 Tesla
Mlynárik, V. ; Gruber, S. ; Starčuk, Zenon ; Starčuk jr., Zenon ; Horký, Jaroslav ; Moser, E.
Localisation in in vivo NMR spectroscopy can be achieved using different concepts. Single voxel localized spectroscopy exploits three slice selective pulses defining a cube (or a parallelepiped) in their intersection. By proper combination of spoiling gradients the excited magnetization outside the cube is dephased and does not contribute to the NMR signal. Another way of localisation is combination of slice selection with phase encoding of the NMR signal in the other two dimensions by means of gradient magnetic fields. The latter method is referred to as spectroscopic imaging and provides an array of spectra corresponding to individual voxels defined by the phase encoding. Further subdivision of the voxels is possible by Hadamard encoding of the excitation pulses.

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