Patent Document ID: 20130010918
Application ID: 13531338
Patent Status: 0

Claim One:
1. A method for determining spatial distribution and concentration of a component in a pore volume of a porous material comprising: selecting a water-soluble salt of a metal with a high atomic weight as an X-ray contrast substance providing a selective ion-exchange reaction with the component, the salt having a general formula R + M − , where R + is selected from a group consisting of Ba 2+ ; Sr 2+ ; Tl + ; Rb +. .. , M − is selected from a group consisting of Cl n ; NO n ; OHn; CH3COO, SO 4 ;. .. in accordance with a standard table of inorganic substances' water solubility, injecting the X-ray contrast substance into a sample of a porous material, upon completion of the selective ion exchange reaction injecting a non-contrast displacing agent into the sample, scanning the sample by computer X-ray microtomography, obtaining a computer tomography image of the sample and determining spatial distribution and concentration of the component by analyzing the obtained computer tomography image.