Reagent and procedure for determining cations

Details Reagent and procedure for determining cations Reagent and procedure for determining cations

G - Physics

01

N

150/1

G01N 33/20 (2006.01) C07D 498/08 (2006.01) G01N 33/52 (2006.01) G01N 33/84 (2006.01)

Patent

CA 1309930

REAGENT AND PROCEDURE FOR DETERMINING CATIONS ABSTRACT OF THE DISCLOSURE The invention is reagents and procedures for determining an amount of cations present in a sample, the reagent comprising (a) one or more chromogenic cryptand compounds of formula I Image (I) wherein k and j, either same or different, are equal to 1 to about 5; m and n, either same or different, are equal to 0 to about 4; a and e, either same or different, are equal to 0 to about 2; b and d, either same or different, are equal to 0 to about 5; R, either same or different, is hydrogen, lower alkyl, lower alkylidene, lower alkenyl, allyl, or aryl; and -Q- is Image , Image , or Image wherein X is CH, N, or COH; and Y includes Image , Image , Image , Image , Image , Image , Image , Image , Image , Image , Image and Image and (b) one or more interfering cation complexing compound masks.

557465

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