NOVEL CYCLOHEXANE-1,2-DICARBOXYAMIDE, ION SELECTIVE MAMBRANEAND TEST SET CONTAINING THEM

摘要

The cyclohexanecarboxamides of the formula I form lipophilic complexes with lithium ions and have high selectivity for lithium ions compared with other alkali metal ions and alkaline earth metal ions. They can be used as ion-sensitive components of testing devices for detecting lithium ions and as ion-selective components of ion-sensitive membranes. Using these membranes, it is possible to determine lithium ions in a concentration of less than one mmol in body fluids containing about 140 mmol of sodium salts and in addition further alkali metal salts and alkaline earth metal salts in usually interfering amounts.