Simultaneous Second Order Derivative Spectrophotometric Determination Of Gallium (III) and Aluminium(III) using Diacetylmonoxime IsonicotinoylHydrazone

Simultaneous Second Order Derivative Spectrophotometric Determination Of Gallium (III) and Aluminium(III) using Diacetylmonoxime IsonicotinoylHydrazone

Diacetylmonoxime Isonicotinoyl Hydrazone is new chromogenic reagent for the simultaneous determination of Gallium (III) and Aluminium(III). The reagent gives greenish yellow color in sodium acetateacetic acid buffer medium with the metal ions. The maximum absorbance at 377 and 367 nm for Ga(III) and Al(III) respectively. The molar absorptivities of Al(III) and Ga(III) are 2.69 x 10 and 3.17 x 1...

Direct and Second Order Derivative Spectrophotometric Determination of Vanadium (IV)

A new spectrophotometric method has been developed for the determination of vanadium (IV) in aqueous dimethyl formamide using 2-hydroxy-3-methoxy benzaldehyde thiosemicarbazone (HMBATC) as a chromophoric reagent. The vanadium (IV) reacts with HMBATC forming a dark yellowish green colored water soluble complex, [V(IV)–HMBATSC] in the pH range of 4.0–7.0. The yellowish green colored complex shows...

Spectrophotometric determination of gallium(III) with rutin.

Direct and Derivative Spectrophotometric Determination of Mercury (ii) Using Diacetylmonoxime Benzoylhydrazone (dmbh)

A simple and derivative spectrophotometric method has been developed for the determination of mercury (II) using Diacetylmonoxime benzoylhydrazone (DMBH). Mercury (II) forms an orange coloured water soluble complex with the reagent in basic medium (pH 10.5).The molar absorptivity and Sandell’s sensitivity of coloured species are 2.01 x 10 L.mol cm and 0.0099 μg/cm respectively. Beer’s law is ob...

fourth-order derivative spectrophotometric method for simultaneous determination of pseudoephedrine and naproxen in pharmaceutical dosage forms

combination dosage forms of naproxen sodium and pseudoephedrine hydrochloride are used for symptomatic treatment of cold and sinus disorders. in this study, fourth-order derivative spectrophotometric method was used for simultaneous determination of naproxen sodium and pseudoephedrine hydrochloride. the method was linear over the range of 2-28 μg/ml for pseudoephedrine hydrochloride and 4-200 μ...