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KMID : 0385520040170060476
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Analytical Science & Technology
2004 Volume.17 No. 6 p.476 ~ p.480
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Analysis of Germanium in the Ore Samples by UV-Visible Spectroscopy
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Reddy KR
Lee KP/Gopalan AI/Showkat AM/Kim SH/Paekc UH
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Abstract
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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 λmax = 618 ㎚ with MG as counter ion and has an apparent molar absorptivtity of 1.313 × 105 L ㏖^(-1) ㎝^(-1). The values obtained by this UV-Visible spectrophotometric method are in good agreement with the values from inductively coupled plasma-mass spectrometer analysis.
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