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|Title:||A spectrophotometric method for the trace determination of vanadium as V(V)-5-chloro- 8-hydroxy-7-iodoquinoline in aqueous medium|
Rao, A L J
|Abstract:||A simple and rapid spectrophotometric method for the determination of vanadium (V) is developed in the presence of 5- choloro-8-hydroxy-7-iodoquinoline under acidic conditions using Triton X- 100 as surfactant. Pb (II), Zn (II), Mn (II), Co (II), Cr (III), Hg (II) and Bi (III) do not interfere when added in large amounts, while Fe (III), Fe (II), Ni (II), Pd (VI), Zr (IV), Cr (II), Cu (II) and Mo (VI) are tolerated in smaller concentrations. The applicability of the method has been tested by analysis of a large number of different synthetic and commercial samples. The method is highly reproducible with standard deviation of ± 0.005 and Sandell's sensitivity 2.85×10-3 μg V cm-2. The stoichiometry of the complex has also been studied.|
|Appears in Collections:||IJC-A Vol.41A(03) [March 2002]|
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