Fluorimetric Reaction of Cobalt with 8-Hydroxyquinoline -5-Sulphonic Acid and Its Application

Abstract

Abstract: Based on the reaction of Cobalt with 8-hydroxyquinoline-5-sulphonic acid, a simple, sensitive and selective method for the fluorimetric determination of Cobalt is described. Its fluorescent species has excitation and emission maxima at 370nm and 470nm, respectively. Its fluorescent intensity shows a linear relationship in the range 3.7×10^-7～2.5×10^-5mol/L. The method is applied to the determination of Cobalt in some substances. The nature of the reaction is discussed.

Key words: Cobalt, Hydrogen peroxide, 8-Hydroxyquinoline-5-sulphonic acid, Fluorimetric reaction

TrendMD:

Jie Nianqin, Fan Linxiang . Fluorimetric Reaction of Cobalt with 8-Hydroxyquinoline -5-Sulphonic Acid and Its Application[J]. Chem. J. Chinese Universities, 1989, 10(3): 302.

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Fluorimetric Reaction of Cobalt with 8-Hydroxyquinoline -5-Sulphonic Acid and Its Application

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