申请人:MILES INC.
公开号:EP0153641A2
公开(公告)日:1985-09-04
The present invention resides in the discovery of a new test means for detecting the presence of an ion in an aqueous test sample and determining its concentration. The test means comprises a porous carrier matrix substantially uniformly incorporated with a) a homogeneous hydrophobic mixture containing three principal ingredients: an ionophore capable of forming a complex with the ion, a hydrophobic vehicle, and a reporter substance capable of interacting with the complex of ionophore and ion to produce a detectable response; and b) a buffering substance capable of providing a pH In the range of from about 5 to 10.
A test device comprises the test means affixed to one upper flat face of an elongated support member.
In use, the aqueous test sample is contacted with the test means or device. The presence and/or concentration of the ion in the test sample is then determined by observing any detectable response produced.
The test means and device of the present invention provide rapid results, sufficient detectable response forming In most instances in at least a few minutes.
本发明在于发现一种新的检测手段,用于检测水性测试样品中是否存在离子并确定其浓度。该检测手段包括一种多孔载体基质,基质中基本上均匀地加入了 a) 一种均匀的疏水性混合物,该混合物含有三种主要成分:一种能与离子形成复合物的发离子体、一种疏水性载体和一种能与发离子体和离子的复合物相互作用以产生可检测反应的报告物质;以及 b) 一种能提供约 5 至 10 范围内的 pH 值的缓冲物质。
测试装置包括固定在细长支撑件的一个上平面上的测试装置。
使用时,水性测试样品与测试装置或设备接触。然后通过观察所产生的任何可检测到的反应来确定测试样品中是否存在离子和/或离子浓度。
本发明的测试工具和装置可快速得出结果,在大多数情况下至少几分钟内就能形成足够的可检测反应。