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    • 4. 发明公开
    • Peroxide and chlorine test strip
    • TeststreifenfürChlor und Wasserstoffperoxid
    • EP0916946A2
    • 1999-05-19
    • EP98121203.8
    • 1998-11-06
    • Integrated Biomedical Technology, Inc.
    • Wu, Wen H.
    • G01N31/22
    • G01N31/22G01N31/228
    • A composition, method, and test device for quantitatively determining the oxidant concentration of a test sample are disclosed. The test device includes a test pad having a suitable carrier matrix incorporating an indicator reagent composition capable of interacting with an oxidant to produce a detectable and measurable response for oxidant over a wide concentration range of oxidant. An indicator reagent composition contains: (a) an iodide salt, (b) a buffer, and (c) a water-soluble polymer, preferably a cellulose-based polymer. An indicator reagent composition is incorporated into a carrier matrix, like filter paper, to provide a test pad useful in a dry phase oxidant assay of a test sample, especially for test samples containing a high concentration of oxidant, like chlorine or a peroxide.
    • 公开了一种用于定量测定试样的氧化剂浓度的组合物,方法和试验装置。 测试装置包括具有合适的载体矩阵的测试垫,该载体矩阵包含能够与氧化剂相互作用以在氧化剂的宽浓度范围内产生可氧化和可测量的响应的指示剂组合物。 指示剂组合物包含:(a)碘化物盐,(b)缓冲剂,和(c)水溶性聚合物,优选纤维素类聚合物。 将指示剂组合物并入载体基质如滤纸中,以提供用于测试样品的干相氧化剂测定的测试垫,特别是对于含有高浓度氧化剂如氯或过氧化物的测试样品。