申请人:Boehringer Mannheim GmbH
公开号:US05215924A1
公开(公告)日:1993-06-01
The invention relates to a method for determining an ion in an aqueous sample. The method involves contacting the sample with a water immiscible material including an ionophore, a pH indicator and a compound which stabilizes sensitivity of the assay. The ion reacts with the ionophore in the water immiscible material, releasing a proton which reacts with the pH indicator generating a color change which is representative of the ion to be measured. The stabilizing compound stabilizes this change. Also described are compositions including the three recited elements, and various new compounds useful as the stabilizer.
本发明涉及一种测定水样中离子的方法。该方法涉及将样品与一种不溶于水的材料接触,该材料包括离子载体、pH指示剂和稳定检测灵敏度的化合物。离子与不溶于水的材料中的离子载体反应,释放出一个质子,该质子与pH指示剂反应产生颜色变化,该颜色变化代表待测离子。稳定化合物稳定了此变化。还描述了包括三个元素的组合物,以及用作稳定剂的各种新化合物。