Authors : Ratnamala P. Sonawane
Page Nos : 174-177
Description :
A spectrophotometric method has been developed for the determination of Cu (II) using 2-[{4-(1,3-benzoimidazole-2-yl)phenyl} imino]-5- nitro phenolas an extractive reagent. The reagent forms a coloured complex, which has been quantitatively extracted into n- butanol at pH-5.6 . The method obeys Beer’s law over a range from 1 to 10 ppm. The Molar absorptivity and Sandell’s sensitivity calculated were 0.1899 × 104 LMol-1cm-1 and 0.1315 µg cm-2 respectively. The proposed method is very sensitive and selective. The method has been successfully applied to synthetic and commercial samples.
Key words: Copper, Spectrophotometric determination, n-butanol, 2-[{4-(1,3-benzoimidazole-2-yl)phenyl} imino]-5-nitro phenol
