Flow Chemiluminescence Determination of Antimony(III,V) Using a Rhodamine B-Cetyltrimethylammonium Chloride Reversed Micelle System Following Liquid–Liquid Extraction

• YAMAMOTO Tomoyuki

  Department of Chemistry, Graduate School of Science, Hiroshima University

• TSUNEMINE Yusuke

  Department of Chemistry, Graduate School of Science, Hiroshima University

• HAYAKAWA Fumio

  Department of Chemistry, Graduate School of Science, Hiroshima University

• HASANIN Tamer H. A.

  Department of Chemistry, Faculty of Science, Minia University

• OKAMOTO Yasuaki

  Department of Chemistry, Graduate School of Science, Hiroshima University

• ISHIZAKA Shoji

  Department of Chemistry, Graduate School of Science, Hiroshima University

• FUJIWARA Terufumi

  Department of Chemistry, Graduate School of Science, Hiroshima University

抄録

A flow chemiluminescence (CL) method combined with a liquid–liquid extraction technique is proposed for the indirect determination of antimony in aqueous samples using rhodamine B (RB). In the liquid–liquid extraction process, the antimony(V) chloro-complex anion, [SbCl₆]⁻, was extracted from an aqueous acidic solution into toluene via ion-pair formation with the protonated RBH⁺ ion. Upon mixing the extract with a reversed micellar reagent solution of cetyltrimethylammonium chloride (CTAC) in 1-hexanol–cyclohexane/water (0.60 mol dm⁻³ H₂SO₄) containing cerium(IV), uptake of the ion-pair by CTAC reversed micelles occurred easily, followed by an oxidation reaction of RB with Ce(IV) in the CL process. The CL signal produced was then measured. Using a flow injection system, the detection limits (DL) of 0.25 μmol dm⁻³ Sb(III) and 0.20 μmol dm⁻³ Sb(V), and linear calibration graphs with dynamic ranges from the respective DLs to 16 μmol dm⁻³ for Sb(III) and Sb(V) were obtained under optimized experimental conditions. The proposed method was successfully applied to a mixture of Sb(III) and Sb(V), where total antimony, Sb(III) + Sb(V), was measured using ceric sulfate as an oxidant to oxidize Sb(III) to Sb(V) prior to extraction, Sb(V) was determined directly without the use of an oxidant, and Sb(III) was calculated by difference.

収録刊行物

• Analytical Sciences

  Analytical Sciences 29 (1), 73-77, 2013

  社団法人 日本分析化学会

キーワード

• Analytical Chemistry

詳細情報

• CRID: 1390282679235985408
• NII論文ID: 10031147329
• NII書誌ID: AA10500785
• DOI: 10.2116/analsci.29.73
• COI: 1:STN:280:DC%2BC3s3otFKmtg%3D%3D
• ISSN: 13482246
• ISSN: 09106340
• NDL書誌ID: 024212139
• PubMed: 23303088
• Web Site: http://ir.lib.hiroshima-u.ac.jp/00047037
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024212139
• Web Site: https://link.springer.com/content/pdf/10.2116/analsci.29.73.pdf
• Web Site: https://link.springer.com/article/10.2116/analsci.29.73/fulltext.html
• Web Site: https://www.jstage.jst.go.jp/article/analsci/29/1/29_73/_pdf
• 本文言語コード: en
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