Direct and Derivative Spectrophotometric Determinaiton of Cadmium (II) Using Alpha Amyl Cinnamaldehyde Isonicotinoyl Hydrazone (ACINH)
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چکیده
An alpha Amyl Cinnamaldehyde Isonicotinoyl Hydrazone (ACINH) is newly synthesised novel chromogenic reagent, ACINH is used for the determination of Cd (II) by a spectrophotometric method. ACINH forms a yellow coloured water soluble [Cd (II)ACINH] complex with Cd (II) in the pH range 9.0. At λmax 380 nm the complexes shows maximum absorbance and at pH range 9.0. Hence further analytical studies were carried out at λmax 380 nm. Beer’s law is obeyed in the range of 0.5031-5.0531 μg/ml Cd (II). The molar absorptivity and sandell’s sensitivity of the complex are 2.94x10 L.mol.cm & 0.0034 μg/cm respectively. Cd (II) forms metal ligand ratio as 1:1 complex with ACINH and complex shows stability constant 8.58x10 was obtained by job’s method. The tolerance limits of various foreign ions have also been studied. For the determination of Cd (II) newly developed derivative spectrophotometric method has been employed and good analytical results in soil samples.
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