Iji abụọ ma ọ bụ karịa elu adsorption ụlọ elu usoro, site na iji nkà na ụzụ nke PLC omume akara ụlọ elu-emepụta nitrogen adsorption, na desorption ụlọ elu imu, cycles, na-aga n'ihu mmepụta nke elu àgwà nitrogen.
