Application of Electron Paramagnetic Resonance to Study of Gallstones

We present the results of an electron paramagnetic resonance (EPR) study of mixed cholesterol gallstones. We have established that free radicals are distributed nonuniformly within the interior of the stone. The type and number of paramagnetic centers depend on the pigment content in the selected la...

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Bibliographic Details
Published in:Journal of applied spectroscopy 2014-03, Vol.81 (1), p.140-144
Main Authors: Kiselev, S. A., Tsyro, L. V., Afanasiev, D. A., Unger, F. G., Soloviev, M. M.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Atomic/Molecular Structure and Spectra
Bilirubin
Electrons
Gallstones
Physics
Physics and Astronomy
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Summary:We present the results of an electron paramagnetic resonance (EPR) study of mixed cholesterol gallstones. We have established that free radicals are distributed nonuniformly within the interior of the stone. The type and number of paramagnetic centers depend on the pigment content in the selected layer. We show that the parameters of the sextet lines in the EPR spectrum of the pigment are close to the parameters of lines in the spectrum of a brown pigment stone.
ISSN:0021-9037
1573-8647
DOI:10.1007/s10812-014-9899-4