need informations regarding which particular P/P0 value or range of P/P0 values should be selected from isotherm and what tags should be applied for that
Micro pore volume and other volumes, new gas absorption device determines itself. Or you you can determine from intercept of isotherm curve graphed according to the D-R equation.
Thank you for your answer sir. But how to retrieve details regarding micropore volume and micropore surface area from the devices?.. We work with Autosorb-1 surface area analyzer with the software AS-1 supplied by Quantachrome. (Generally to find out BET surface area we select P/P0 value from 0.05 to 0.3 and apply multipoint BET tag to it ). Is there any similar way to find out micropore surface area and volume from nitrogen adsorption-desorption isotherm?.
In general, DR plots are linear in the right side of the DR curve (that is, low pressures).
Just make the DR plot, and choose the most linear part in the high range of abscisa.
You can see how Dubinin himself did in the Figure 6 of his 1968 article (attached)
