Method for determining the concentration of cations in a sample

Details Method for determining the concentration of cations in a sample Method for determining the concentration of cations in a sample

1991-12-05

1992-09-08

Hill, Jr., Robert J.

Chemistry: analytical and immunological testing

Metal or metal containing

Li, na, k, rb, cs, fr, be, mg, ca, sr, ba, ra

436 73, 436 74, 436164, G01N 2178, G01N 3320

Patent

active

051457873

ABSTRACT:
The invention is reagents and procedures for determining an amount of cations present in a sample, the reagent including one or more chromogenic crypt and compounds of formula I ##STR1## wherein k and j, either same or different, are equal to 1 to about 5;

REFERENCES:
patent: 3872212 (1975-03-01), Atwood et al.
patent: 4367072 (1983-01-01), Vogtle et al.
patent: 4407962 (1983-10-01), Tobacco et al.
patent: 4670218 (1987-06-01), Gantzer et al.
patent: 4703015 (1987-10-01), Tobacco et al.
patent: 4808539 (1989-02-01), Chapoteau et al.
patent: 4859606 (1989-08-01), Cram et al.
patent: 4994395 (1991-02-01), Chapoteau et al.
patent: 5045475 (1991-09-01), Chapoteau et al.
patent: 5073501 (1991-12-01), Chapoteau et al.

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