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 10 L.mol-1.cm-1, sandell’s and sensitivities of Al(III) and Ga(III) are 0.00745 and 0.002002 μg.cm -2 respectively. A few methods are available for simultaneous determination of Ga(III) and Al(III) by derivative spectrophotometric technique. Trace quantities of Ga(III) and Al(III) simultaneously determined in alloys and biological samples.