Determination of trace heavy metals by sequential injection-anodic stripping voltammetry using bismuth film screen-printed carbon electrode

• Chuanuwatanakul, Suchada

• Dungchai, Wijitar

• Chailapakul, Orawon

• Motomizu, Shoji

抄録

A sequential injection-square-wave anodic stripping voltammetry (SIA-SWASV) is proposed for the simultaneous determination of Pb(II), Cd(II) and Zn(II), employing an in situ plated bismuth film screen-printed carbon electrode (Bi-SPCE) as a working electrode and hydrochloric acid as a supporting electrolyte. Bi(III) and analyte metal ions were on-line deposited onto a SPCE at -1.4 V vs. Ag/AgCl for 180 s. At a stopped flow, a square-wave voltammogram was recorded from -1.3 to 0 V vs. Ag/AgCl. The experimental conditions were optimized. Under the optimum conditions, the linear ranges were 0 - 70 mu g L-1 for Pb(II) and Cd(II), and 75 - 200 mu g L-1 for Zn(II). The limits of detection (S/N = 3) were obtained at concentrations as low as 0.89 mu g L-1 for Pb(II) and 0.69 mu g L-1 for Cd(II) for a 180-s deposition time. The proposed method was applied to the determination of Pb(II), Cd(II) and Zn(II) in water samples with satisfactory results.

収録刊行物

• Analytical Sciences

  Analytical Sciences 24 (5), 589-594, 2008-05-10

  Tokyo : Japan Society for Analytical Chemistry

キーワード

• DIAMOND THIN-FILM
• FLOW-INJECTION
• PLATED CARBON; WATER SAMPLES; COPPER
• LEAD
• ZINC
• EXTRACTS
• CADMIUM
• CD(II)

詳細情報

• CRID: 1050846637478669952
• NII論文ID: 10021099981
• NII書誌ID: AA10500785
• ISSN: 09106340
• NDL書誌ID: 9483019
• Web Site: https://ousar.lib.okayama-u.ac.jp/33007
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9483019
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
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  • NDL
  • CiNii Articles