Colorimetric methods and reagents for assaying calcium in a test sample.

摘要

COMPOUND PRESENTED chromogenic which is especially SELECTIVE IN THE DETERMINATION OF CALCIUM IN BLOOD AND having the general formula (I): wherein: R is hydrogen or lower alkyl; X is CH2, CH2CH2, CH = CH; O, S, SO2, SS, NR; W is CH, C-OH ON; M is p-nitrophenylazo, 2,4-DINITROFENILAZO, 2.4, 6TRINITROFENILAZO, P-NITROSTIRIL, P-BENZOQUINONEIMINO, bis- (4-dimethylaminophenyl) hydroxymethyl, 3-FENILISOTIAZOLIL-5-AZO, thiazolyl-5-azo; O isothiazolyl-5-AZO; K is 0 or 1; I is OO 1; N is 0 or 1. also present a composition for RAGENTE AND chromogenic synthesis of compounds of formula I.