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

  • ZHENG Feng-ying
    Department of Environmental Science, Wuhan University Department of Chemistry and Environmental Science, Zhangzhou Teachers College
  • QIAN Sha-hua
    Department of Environmental Science, Wuhan University
  • LI Shun-xing
    Department of Chemistry and Environmental Science, Zhangzhou Teachers College
  • HUANG Xue-qiong
    Department of Chemistry and Environmental Science, Zhangzhou Teachers College
  • LIN Lu-xiu
    Department of Chemistry and Environmental Science, Zhangzhou Teachers College

書誌事項

タイトル別名
  • 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

この論文をさがす

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

  • Analytical Sciences

    Analytical Sciences 22 (10), 1319-1322, 2006

    社団法人 日本分析化学会

被引用文献 (1)*注記

もっと見る

参考文献 (45)*注記

もっと見る

キーワード

詳細情報

問題の指摘

ページトップへ