Analytical method and apparatus
    1.
    发明申请
    Analytical method and apparatus 审中-公开
    分析方法和装置

    公开(公告)号:US20020023849A1

    公开(公告)日:2002-02-28

    申请号:US09799497

    申请日:2001-03-07

    IPC分类号: G01N027/404

    CPC分类号: G01N33/146 G01N27/40

    摘要: Method and apparatus for detecting and/or determining ethanol in fluid samples using a substantially non-porous barrier of un-plasticized polyvinyl chloride (PVC) interposed between the sample to be analyzed and a detecting means responsive to ethanol. The ethanol diffuses through the barrier membrane and then is measured at the detecting means. The PVC membrane can be made by solvent casting, and is usually 10 to 40 um thick. Measurement can be by any known means, but preferably electrochemically (amperometrically). The PVC membrane may be part of a multiple membrane system. The method and sensor are useful for analyzing alcoholic liquors or beverages (for example beer, wine and other fermentation products), in their final form or at intermediate stages of their manufacture or storage, and also for the monitoring of a wide range of process, waste and effluent liquids.

    摘要翻译: 使用插入待分析样品和响应于乙醇的检测装置之间的未增塑聚氯乙烯(PVC)的基本上无孔屏障来检测和/或测定流体样品中的乙醇的方法和装置。 乙醇通过阻隔膜扩散,然后在检测装置处测量。 PVC膜可以通过溶剂浇铸制成,通常为10〜40μm厚。 测量可以通过任何已知的方法,但优选电化学(电分析)。 PVC膜可以是多重膜系统的一部分。 该方法和传感器可用于分析其最终形式或其制造或储存的中间阶段的酒精酒或饮料(例如啤酒,葡萄酒和其他发酵产品),以及用于监测各种过程, 废液和废液。