High-Efficiency DNA Extraction Using Poly(4,4-Cyclohexylidene Bisphenol Oxalate)-Modified Microcrystalline Cellulose-Magnetite Composite

Table 2

The values of surface area and pore volume for poly(4,4-cyclohexylidene bisphenol oxalate).

Relative pressure (P/P0)	Surface area	BET surface area	Single-point adsorption total pore volume of pores less than 842.856 Å radius	Single-point desorption total pore volume of pores less than 928.410 Å radius	Pore size (adsorption and desorption average pore diameter) by (4 V/A by BET)
0.271	1.4475 m^2/g	2.6549 m^2/g	—	—	—
0.988	—	—	0.181943 cm^3/g	—
0.989	—	—	—	0.198761 cm^3/g	2,741.2863 Å and 2,994.6726 Å