CPC B01J 20/28052 (2013.01) [A61M 1/1696 (2013.01); B01J 20/0211 (2013.01); B01J 20/06 (2013.01); B01J 20/20 (2013.01); B01J 20/22 (2013.01); B01J 2220/66 (2013.01)] | 16 Claims |
1. A method, comprising the steps of:
placing at least a first sorbent pouch in a sorbent cartridge;
wherein the first sorbent pouch is formed from a porous material; wherein the first sorbent pouch contains urease and the porous material allows fluid to pass through the first sorbent pouch;
wherein the porous material retains at least 98% by weight of solid urease in the first sorbent pouch; and
wherein the porous material allows dissolved urease to pass through the first sorbent pouch.
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