| http://www.w3.org/ns/prov#value | - A device of claim 15 wherein the solid phase material is selected from the group consisting of glass fiber mats, non-woven synthetic polymer mats, sintered particulate structures, cast or extruded membrane materials, or other materials characterized by the presence of adhesion within the material, or molded or cast open pore structure such as nylon or nitrocellulose, or particulate material sucha
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