申请人:EIKEN KAGAKU KABUSHIKI KAISHA
公开号:EP0553820A2
公开(公告)日:1993-08-04
A stable composition for use in the redox reaction-based measurement of peroxidatively active substances in a test sample (e.g., urine and blood), which can be produced easily, is stable for a prolonged period of time and does not cause false negatives due to the presence of a reducing substance in the test sample or false positives due to the addition of an oxidizing agent in the composition, as well as a test strip comprising a carrier incorporated with the composition. The composition includes a buffer material, a chromogen in an amount sufficient to react with the peroxidatively active substance in a test sample to develop color, a phosphonic acid analog of complexane as a stabilizing agent in an amount sufficient to stabilize the composition, and an oxidizing agent in an amount sufficient to oxidize reducing substances in a test sample.
一种用于基于氧化还原反应测量测试样品(如尿液和血液)中过氧化活性物质的稳定组合物,该组合物易于生产,可长时间保持稳定,不会因测试样品中存在还原性物质而导致假阴性,也不会因组合物中添加氧化剂而导致假阳性。该组合物包括一种缓冲材料、一种发色剂(其用量足以与测试样品中的过氧化活性物质反应而显色)、一种络氨酸的膦酸类似物(其用量足以稳定该组合物)以及一种氧化剂(其用量足以氧化测试样品中的还原性物质)。