Determination of Ultratrace Amounts of Osmium Using Catalytic Wave of OsO4-Bromate System by Voltammetric Method.
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- ENSAFI Ali A.
- College of Chemistry, Isfahan University of Technology
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- ZAREI K.
- College of Chemistry, Isfahan University of Technology
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Highly sensitive catalytic waves of OsO4-bromate linear sweep voltammetric and square wave voltammetric techniques were proposed for the determination of ultratrace amounts of osmium. Under optimized conditions, the catalytic linear sweep voltammetric procedure gives excellent reproducibility and limits of detection and a linear dynamic range and gives a low signal for background, whereas the square wave voltammetric technique gives higher sensitivity, but the background signal was high and the linear dynamic range was narrower. The methods are suitable for the determination of osmium as osmium tetroxide as low as 1.5×10-10 mol/l. The currents are linear for the concentration ranges of 0.10 - 210.0 ng/ml and 0.20 - 2.0 ng/ml for linear sweep voltammetry and square wave voltammetry, respectively.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 15 (9), 851-855, 1999
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679231262336
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- NII論文ID
- 130004440140
- 10004707423
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- NII書誌ID
- AA10500785
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- COI
- 1:CAS:528:DyaK1MXlvV2qtL8%3D
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 4868052
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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