Abstract − Analytical Sciences, 18(10), 1127 (2002).
Simultaneous Determination of Zirconium and Molybdenum by First-Derivative Spectrophotometry
Abdolkarim ABBASPOUR and Leila BARAMAKEH
Department of Chemistry, College of Science, Shiraz University, Shiraz, 71454, Iran
A first-derivative spectrophotometric method for the simultaneous determination of Zr and Mo with Alizarin Red S is described. Measurements were made at the zero-crossing wavelengths at 490.5 nm for Zr and 446.0 nm for Mo. The calibration graphs were linear at 0.5 - 20 and 0.5 - 13.0 ug ml-1 for Zr and Mo, respectively. The possible interfering effects of various ions were studied. Only iron was interfered in this system. The validity of the method was examined by using some mixtures of Mo and Zr. The method was applied in different matrix in both presence and absence of some foreign metal ions.
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