METHOD OF ORGANIZATION OF MEANS FOR DETERMINING THE AMOUNT OF ADSORBATE ADSORPTION BY DISPERSE AND POROUS MATERIALS, DEVICE FOR DETERMINING THE AMOUNT OF ADSORBATE ADSORPTION BY DISPERSE AND POROUS MATERIALS, METHOD OF DETERMINING THE SIZE OF ADSORBATE ADSORPTION BY DISPERSE AND POROUS MATERIALS BY THE DYNAMIC METHOD OF THERMAL DESORPTION Russian patent published in 2018 - IPC G01N30/00 

FIELD: instrument engineering.

SUBSTANCE: invention relates to analytical instrumentation, namely to methods for arranging means for determining the adsorption amount of adsorbate by dispersed and porous materials, to devices for determining the adsorption value of adsorbate by dispersed and porous materials, to methods of determining the adsorption of adsorbate by dispersed and porous materials by the dynamic method of thermal desorption. Claimed invention for determining the adsorption amount of adsorbate by dispersed and porous materials comprises a cooling unit, a measuring ampoule, which is made with possibility to be located in the cooling unit, the housing in which the adsorbate flow controller is located, first helium flow controller, the first TCD that contains a measuring cell and a comparative cell. At that, a first flow line is formed, which is made with possibility to pass a flow of a mixture of adsorbate gases and helium, with the possibility of connecting a measuring ampoule to it, and containing, along the flow of adsorbate, an adsorbate regulator, along the helium flow, a helium flow controller, along the flow of a mixture of adsorbate and helium gases, first TCD, which is made containing a comparative and a measuring cell. In addition, it comprises a second helium flow controller located in the housing, a first flows switch, a second flows switch, second TCD, which is made containing the measuring and comparative cells, a first delay line, a second delay line, a third delay line, a fourth delay line. In addition, it further comprises a comparative ampoule, which is made with possibility to be positioned in the cooling assembly, with the possibility of connection to the second flows switch, and having a shape and volume identical to the shape and volume of the measuring ampoule; inserts with a small adsorption surface, which are made with the possibility of location in the measuring and comparative ampoules; calibration device for TCD. At that, the measuring ampoule is made with the possibility to be connected to the first flows switch, in addition, a second flow line is formed, which is made with the possibility to pass a helium flow and in which along the movement of the helium flow are tightly connected the second regulator of helium flow, the comparative cell of the second TCD, first flows switch, the second delay line, the second flows switch, the TCD calibration device, fourth delay line, measuring cell of the second TCD; and the first flow line is further made with the possibility to connect a comparative ampoule. At that, between the comparative cell of the first TCD and the measuring cell of the first TCD, the first flows switch, the first delay line, the second flows switch, the third delay line are located and tightly connected to the flow of the mixture of adsorbate and helium gases.

EFFECT: expansion of the arsenal of means of this purpose, the ability to measure the amount of adsorbate during desorption in the helium stream at the maximum sensitivity of the TCD in the entire possible range of partial pressures of the adsorbate, ability to provide a minimum error in determining the value of adsorption, an increase in the reliability of the results of the investigated texture characteristics.

23 cl, 2 dwg