Method and composition for magnesium ion detection using hydroxy

Details Method and composition for magnesium ion detection using hydroxy Method and composition for magnesium ion detection using hydroxy

1991-06-17

1993-06-01

Lee, Mary C.

Chemistry: analytical and immunological testing

Metal or metal containing

Present in biological fluids

436 79, 534652, G01N 3122, G01N 3320, C07C24500

Patent

active

052159256

ABSTRACT:
1,5-Bis(2-hydroxyphenyl)-3-cyanoformazans substituted in at least one of the 3-, 4- and 5-positions of either phenyl moiety are useful for the determination of magnesium ions. The cyanoformazan substituents are chosen such that their cumulative Hammett-sigma value is greater than about 0.23. These cyanoformazans are useful in analytical compositions and methods for either wet or dry assay of magnesium ions.

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