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VI. Preparation of agarose gels as reference substances for NMR relaxation time measurement
Institution:1. Department of Medical Physics, Hammersmith Hospital, University of London, U.K.;7. Institut d''Hygiene et d''Epidemiologie, Rue J. Wytsman, Brussels, Belgium;1. University of British Columbia, 3187 University Way, Kelowna, BC V1V1V7, Canada;2. Montreal Neurological Institute, McGill University, 3801 University Street, Montreal, QC H3A2B4, Canada;3. Translational Neuroimaging Laboratory, McGill University Research Centre for Studies in Aging, Douglas Mental Health University Institute, 6875 Boulevard LaSalle, Montreal, QC H4H 1R3, Canada;1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;2. Department of Civil Engineering, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA;1. Division of Functional and Diagnostic Imaging Research, Department of Radiology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan;2. Advanced Biomedical Imaging Research Center, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan;3. Division of Diagnostic Radiology, Department of Radiology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan;1. Department of Physics, Tezpur University (Central University), Tezpur 784028, India;2. Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560012, India;1. Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India;2. UGC-DAE Consortium for Scientific Research, Mumbai Centre, BARC, Mumbai 400085, India
Abstract:A standard method has been developed for the production of reference materials for NMR relaxation time measurement. These are based on agarose gels doped with gadolinium. The reproducibility and temporal stability of the gels have been found to be excellent. Electron microscope studies have shown good homogeneity. The relaxation behavior of such gels has been mathematically modeled with good agreement with experiment.
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