Patent ID: 8480786
Filing Date: 2013-07-09
Classification: G01N

Abstract:
1. A method of measuring information for adsorption isostere creation, comprising: changing pressure and temperature inside a container having a fixed capacity, which is filled with a gas of specific composition and in which a substance to be measured is located, by repeating the following steps alternately at least twice, the following steps including: (i) a first control step of controlling one of temperature and pressure inside the container for said one of temperature and pressure to be changed by a predetermined variation in a condition of the other of temperature and pressure inside the container being maintained constant, by performing feedback control on at least one gas flow rate selected from the group consisting of a gas supply amount of the gas of specific composition, which is supplied from the outside of the container to the inside of the container, and a gas discharge amount of the gas of specific composition, which is discharged from the inside of the container to the outside of the container, based on a result of measuring pressure inside the container, a result of measuring temperature inside the container, and the variation of said one of temperature and pressure; and (ii) a second control step of controlling a gas flow rate for an adsorption amount of the gas of specific composition with respect to the substance to be measured, which has been changed by execution of the first control step, to become the same as an adsorption amount of the gas of specific composition with respect to the substance to be measured, which is obtained before the execution of the first control step, in a condition of said one of temperature and pressure inside the container being maintained constant, by performing feedback control on the at least one gas flow rate selected from the group consisting of the gas supply amount of the gas of specific composition, which is supplied from the outside of the container to the inside of the container, and the gas discharge amount of the gas of specific composition, which is discharged from the inside of the container to the outside of the container, based on a result of measuring the gas flow rate and a result of measuring a total amount of one of the gas of specific composition, which is newly supplied to the inside of the container, and the gas of specific composition, which is newly discharged from the inside of the container, when the first control step is executed; and obtaining the information for adsorption isostere creation, which is a set of at least three measurement information items each containing a pair of one pressure value and one temperature value, by measuring at least three information items selected from a virtual measurement information group of at least three information items each containing a pair of one pressure value and one temperature value indicated by: where T(