C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
150/7, 150/8, 26
C07D 498/08 (2006.01) C07D 498/18 (2006.01) G01N 33/52 (2006.01) G01N 33/84 (2006.01) G01N 33/96 (2006.01)
Patent
CA 1290749
COMPOUNDS, REAGENTS AND PROCEDURES 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 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 wherein X is CH, N, or COH; and Y includes Image Image Image and Image except that when Q is Image , wherein Y is selected from the 2,4,6-trinitrophenylazo, p-nitrostyryl, p-benzoquinonemonoimino and bis-(p-dimethylaminophenyl)hydroxymethyl, then the following condition cannot be present: that simultaneously b is equal to 0 or 1, d is equal to 0 or 1, j is equal to 1, n is equal to 1 or 2, a is equal to 1, e is equal to 1, k is equal to 1 and m is equal to 2.
557469
Chapoteau Eddy
Czech Bronislaw P.
Gebauer Carl R.
Kumar Anand
Leong Koon-Wah
Macrae & Co.
Technicon Instruments Corporation
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