Speciation of Antimony by Preconcentration of Sb(III) and Sb(V) in Water Samples onto Nanometer-size Titanium Dioxide and Selective Determination by Flow Injection-Hydride Generation-Atomic Absorption Spectrometry
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- ZHENG Feng-ying
- Department of Environmental Science, Wuhan University Department of Chemistry and Environmental Science, Zhangzhou Teachers College
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- QIAN Sha-hua
- Department of Environmental Science, Wuhan University
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- LI Shun-xing
- Department of Chemistry and Environmental Science, Zhangzhou Teachers College
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- HUANG Xue-qiong
- Department of Chemistry and Environmental Science, Zhangzhou Teachers College
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- LIN Lu-xiu
- Department of Chemistry and Environmental Science, Zhangzhou Teachers College
書誌事項
- タイトル別名
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- Speciation of Antimony by Preconcentration of Sb 3 and Sb 5 in Water Samples onto Nanometer size Titanium Dioxide and Selective Determination by Flow Injection Hydride Generation Atomic Absorption Spectrometry
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抄録
A novel method for prevention of the oxidation of Sb(III) during sample pretreatment, preconcentration of Sb(III) and Sb(V) with nanometer size titanium dioxide (rutile) and speciation analysis of antimony, has been developed. Antimony(III) could be selectively determined by flow injection-hydride generation-atomic absorption spectrometry, coexisting with Sb(V). Trace Sb(III) and Sb(V) were all adsorbed onto 50 mg TiO2 from 500 ml solution at pH 3.0 within 15 min, then eluted by 10 ml of 5 mol/l HCl solution. One eluent was directly used for the analysis of Sb(III); to the other eluent was added 0.5 g KI and 0.2 g thiourea to reduce Sb(V) to Sb(III), then the mixture was used for the determination of total antimony. The antimony(V) content is the mathematical difference of the two concentrations. Detection limits (based on 3σ of the blank determinations, n = 11) of 0.05 ng/ml for Sb(III) and 0.06 ng/ml for Sb(V), were obtained.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 22 (10), 1319-1322, 2006
社団法人 日本分析化学会
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詳細情報
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- CRID
- 1390282679235103872
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- NII論文ID
- 130004441181
- 10018321795
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- NII書誌ID
- AA10500785
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 8080325
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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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- 使用不可