Device for the removal and concentration of organic compounds from the
atmosphere
    3.
    发明授权
    Device for the removal and concentration of organic compounds from the atmosphere 失效
    从大气中去除和浓缩有机化合物的装置

    公开(公告)号:US5395426A

    公开(公告)日:1995-03-07

    申请号:US87374

    申请日:1993-07-08

    摘要: A device and method for removing, concentrating and analyzing airborne organic compounds. The device includes a nonporous membrane which contains a collection media. The liquid collection media typically includes a component which has a molecular weight that is too large to pass through transport corridors in the nonporous membrane and a component which has a molecular weight which is sufficiently small enough to pass through the transport corridors in the nonporous membrane and thereby forming a thin film on the exterior surface of the device. The collection media can consist of only components too large to pass through the membrane transport corridors. Organic contaminants are trapped in the thin film on the exterior surface of the device or the membrane and transported by concentration gradient diffusion forces into the bulk of the collection media within the nonporous membrane.

    摘要翻译: 一种去除,浓缩和分析空气有机化合物的装置和方法。 该装置包括含有收集介质的无孔膜。 液体收集介质通常包括分子量太大而不能通过无孔膜中的运输走廊的组分,以及分子量足够小以通过无孔膜中的运输走廊的组分,以及 从而在装置的外表面上形成薄膜。 收集介质只能由太大的组件组成,不能通过膜运输走廊。 有机污染物被捕获在器件或膜的外表面上的薄膜中,并通过浓度梯度扩散力传输到无孔膜内的大部分收集介质中。