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Spectrophotometric Determination of Methandienone in Tablets Using 1.4-Dihydrazinophthalazine
(Analytical Letters, 1992)
A simple and sensitive method for the determination of methandienone in tablets using 1.4-dihydrazinophthalazine as the reagent is presented. The yellow coloured dihydralazinhydrazone shows the maximum at 401 nm and molar ...
UV spectrophotometric microdetermination of L-DOPA based on complex formation with copper(II)ion
(Marcel Dekker Inc, New York, 1997)
The UV spectrophotometric investigations obtained for the reaction between L-DOPA and copper(II)ion contribute to the clarification of equilibrium conditions of the complex formation both in the excess of metal ion and ...
Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution
(Marcel Dekker Inc, New York, 1997)
The composition and the stability constant of the Al(III)-hesperidin complex were determined by suitable spectrophotometric methods and pH measurements. The formation of the complex, whose concentration stability constant ...
Spectrophotometric determination of fluorometholone in pharmaceuticals using 1,4-dihydrazinophthalazine
(Marcel Dekker Inc, New York, 1996)
A sensitive and simple spectrophotometric method for the determination of fluorometholone in pharmaceutical formulations using 1,4-dihydrazinophthalazine (1,4-DHPHT; dihydralazine) as the reagent is presented. The yellow ...