SPECTROPHOTOMETRIC DETERMINATION OF VANADIUM(V) USING GALLACETOPHENONE OXIME.

P NAGESWAR RAO, K ADINARAYANA REDDY

Abstract


A method has been developed for the direct spectrophotometric determination of vanadium(V) using gallacetophenone oxime. The reagent forms a yellow-green complex in acid medium. The colour is stable for 20 hours. The system obeys Beer's law over the concentration range 0.5 to 6.0 ug/mi.The molar absorptivity and Sandell sensitivity are 8.6 x 10-3 lit, mole'cm' and 0.0058 ug.cm -2 respectively. The effect of foreign ions was also studied. The stoichiometry is established as 1 :2.

Keywords


Direct spectrophotometry, microamounts, gallacetophenone oxime, vanadium(V).

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