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Analysis of Germanium in the Ore Samples by UV-Visible Spectroscopy  

Reddy, K. Raghava (Department of Chemistry Graduate School, Kyungpook National University)
Lee, Kwang-Pill (Department of Chemistry Graduate School, Kyungpook National University)
Gopalan, Anantha Iyengar (Department of Chemistry Graduate School, Kyungpook National University)
Showkat, Ali Md (Department of Chemistry Graduate School, Kyungpook National University)
Kim, Sang-Ho (Department of Chemistry Graduate School, Kyungpook National University)
Paek, U-Hyon (Department of Chemistry, Gyeongsang National University)
Publication Information
Analytical Science and Technology / v.17, no.6, 2004 , pp. 476-480 More about this Journal
Abstract
A simple, rapid, reproducible and selective UV-Visible spectrophotometric method has been developed for determination of germanium in a week acid medium (pH = 3.0) in the presence of mandelic acid (MA) and malachite green (MG). A single extraction in chlorobenzene was used for the analysis. The germanium-MA ion association complex exhibits an absorption maximum at ${\lambda}_{max}=618nm$ with MG as counter ion and has an apparent molar absorptivtity of $1.313{\times}10^5L\;mol^{-1}\;cm^{-1}$. The values obtained by this UV-Visible spectrophotometric method are in good agreement with the values from inductively coupled plasma-mass spectrometer analysis.
Keywords
UV-Visible spectroscopy; Germanium; mandelic acid; malachite green;
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