申请人:MILES INC.
公开号:EP0125554A2
公开(公告)日:1984-11-21
A test means for determining the presence of an ion in an aqueous test sample is disclosed, as well as a test device incorporating the test means, a method for preparing it and a method for using it. The test means comprises a hydrophilic carrier matrix incorporated with finely divided globules of a hydrophobic vehicle. The hydrophobic vehicle contains an ionophore capable of forming a complex with the ion, and a reporter substance capable of interacting with the complex of ionophore and ion to produce a detectable response.
The test device comprises an elongated support member having an upper substantially flat face, the test means being affixed to the flat face of the support member.
The method for preparing the device comprises forming a first mixture of water and a hydrophilic polymer, forming a second mixture of a hydrophobic vehicle, an ionophore capable of forming a complex with the ion, and a reporter substance capable of interacting with the complex of the ionophore and ion to produce a detectable response, combining the first and second mixtures to produce a stable emulsion of finely divided globules of the second mixture in the first mixture, coating the emulsion onto an elongated support member having an upper, substantially flat face, and evaporating the water from the emulsion to product a hydrophilic carrier matrix incorporated with finely divided globules of the second mixture, the matrix being thereby affixed to the flat face of the support member.
The method for using the test means or device comprises contacting it with the test sample and observing a detectable response.
本发明公开了一种用于确定水性测试样品中是否存在某种离子的测试手段,以及一种包含该测试手段的测试装置、一种制备方法和一种使用方法。测试装置由亲水性载体基质和细小的疏水性载体球组成。疏水性载体含有能与离子形成复合物的离子疏水剂,以及能与离子疏水剂和离子的复合物相互作用以产生可检测反应的报告物质。
测试装置包括一个细长的支撑件,该支撑件的上部基本上是平的,测试装置被固定在支撑件的平面上。
制备该装置的方法包括:形成水和亲水性聚合物的第一种混合物;形成疏水性载体、能与离子形成络合物的发离子体以及能与发离子体和离子的络合物相互作用以产生可检测反应的报告物质的第二种混合物、将第一混合物和第二混合物混合以产生稳定的乳液,乳液中含有第一混合物中第二混合物的细小颗粒,将乳液涂覆在具有上部基本平坦表面的细长支撑件上,蒸发乳液中的水分以产生亲水性载体基质,基质中含有第二混合物的细小颗粒,基质因此被粘附在支撑件的平坦表面上。
使用测试工具或装置的方法包括将其与测试样品接触并观察可检测到的反应。