Chemistry: analytical and immunological testing – Metal or metal containing – Present in biological fluids
Patent
1987-04-10
1989-01-03
Richman, Barry S.
Chemistry: analytical and immunological testing
Metal or metal containing
Present in biological fluids
260396N, 422 56, 422 57, 422 58, 436 79, 436169, 534788, 534795, 534860, 534871, 540 1, 548436, 548182, 548190, 549 13, G01N 3122
Patent
active
047957123
ABSTRACT:
Novel chromogenic derivatives of 1,2-bis-(o-aminoaryloxy)ethane-N,N,N',N'-tetraacetic acid are useful for the determination of calcium ions in both solution and dry assays. These compounds comprise a dye moiety which is directly conjugated to the acetic acid substituted-nitrogen atom and which enables the compounds to exhibit maximum absorbance at a wavelength generally greater than 400 nm before complexation. When the compounds are complexed with calcium ions, the absorbance shifts to a shorter wavelength.
REFERENCES:
patent: 3121613 (1964-02-01), Bittner
patent: 3754865 (1973-08-01), Gindler
patent: 3798000 (1974-03-01), Helger
patent: 3992158 (1976-11-01), Przybylowicz et al.
patent: 4258001 (1981-03-01), Pierce et al.
patent: 4303610 (1981-12-01), Sardisco et al.
patent: 4382122 (1983-05-01), Mezei et al.
patent: 4594225 (1986-06-01), Argi et al.
patent: 4603209 (1986-07-01), Tsien et al.
Tsien, Biochem., 19, pp. 2396-2404 (1980).
Babb Bruce E.
Murray Bruce J.
Sundberg Michael W.
Toner John L.
Eastman Kodak Company
Johnston Jill
Richman Barry S.
Tucker J. Lanny
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