Abstract
A selective, sensitive, and economical derivative spectrophotometric method has been developed for the determination of trace amount of Cu(II) and Pd(II) with MDTC as a reagent in the presence of CTAB, a solubilizing agent. The molar absorption coefficient and analytical sensitivities of the 1:2 Cu(MDTC)2 and Pd(MDTC)2 complexes are 2.467×104 and 2.989×104 l mol−1, respectively. The developed derivative procedure, is applied for the rapid and selective simultaneous determination of Cu(II) and Pd(II) in the range of 0.2–15 and 0.1–10 µg/ml, respectively. Complex matrices, including alloys, biological samples, pharmaceutical samples and synthetic mixtures have been successfully analyzed for trace amounts of two metal ions.
Acknowledgments
The authors are thankful to the UGC, New Delhi for the research grant F‐12/9/2004 supporting this work.