CHROMOGENIC CRYPTAHEMISPHERANDS AND THEIR USE IN DETECTING ELECTROLYTES IN AN AQUEOUS TEST SAMPLE

摘要

The present invention resides in the discovery of a new class of compounds defined herein as "chromogenic cryptahemispherands" useful for the measurement of ions, in particular, ions in aqueous solution, which have the structure <IMG> wherein: R, same or different, is hydrogen, lower alkyl, lower alkylidene, lower alkenyl, allyl or aryl; R', same or different, is lower alkyl, lower alkylidene, lower alkenyl, allyl or aryl; R", same sr different, is hydrogen, lower alkyl, lower alkylidene, lower alkenyl, allyl or aryl; Q is a chromogenic moiety capable of providing the appearance of or change in color, or which is otherwise capable of providing a detectable response in the presence of a particular cation; a, b, m and n, same or different, are 1 to about 3; and x, y, same or different, are 1 to about 4. A test device utilizing one or more of the compounds for performing such measurements is also disclosed.