| 摘要 |
PURPOSE: A method and medium is provided to remove oxidants, preferably gaseous oxidants or reaction products, from gases and liquids, particularly air by means of solid phase reaction or sorption. CONSTITUTION: A solid phase reaction article comprises oxidant scavenger particulate incorporated therein, wherein the oxidant is reacted or sorbed with the scavenger particulate to produce a reduced or immobilized form of the oxidant. A method of preventing the oxidation of readily oxidized organic analytes sorbed on a particle enmeshed in a porous membrane, the method comprises the step of including in the porous membrane, a particle that sorbs or is itself reactive with oxidants. A composite article comprises a conventional filter or conventional solid phase extraction membrane or web and laminated or stacked in registration therewith an oxidant scavenging membrane comprising a porous membrane having incorporated therein oxidant scavenger particulates that are oxidized by an oxidant or that have an oxidant sorbed therein.
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