NMR microimaging studies of water diffusivity in saturated, microporous systems.
A novel microimaging method is described for measuring the effective diffusion coefficient (D infinity) of water in saturated, microporous materials. A simple multicompartment computer simulation was used to show how the value of D infinity, when combined with measurements of water proton relaxation times and pulsed field gradient spin-echo amplitudes, allows the pore size distribution and pore connectivity to be characterized.
Hills
B P
BP
AFRC Institute of Food Research, Norwich Laboratory, Norwich Research Park, Colney, United Kingdom.
Smart
S C
SC
Quantin
V M
VM
Belton
P S
PS
D003198:Computer Simulation; D004058:Diffusion; D005502:Food; D005524:Food Technology; D008279:Magnetic Resonance Imaging / Q000379:methods*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D016062:Porosity; D014867:Water
D014867:Water