階段波掃引たたみ込み積分ポーラログラフ
書誌事項
- タイトル別名
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- A staircase convolution polarograph
- カイダンハ ソウインタタミコミ セキブン ポーラログラフ
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説明
A Staircase convolution polarograph was constructed. In this polarograph, the staircase voltammetry current, i, is converted to a new function, Ic, which represents the change of the surface concentration of depolarizer, by Ichise's s-1/2 module according to eq. (1)<BR>Ic=∫t0i(η)/√π(t-η)dη……(1)<BR>Theoretical expression of the current vs. potential curves in staircase voltammetry and staircase convolution voltammetry with the step voltage of ΔE and the step interval of τ are discribed as nondimensional functions (2) and (3), <BR>ψs(j, Δζ)=i√τ/nFA*C√D……(2)<BR>φs(j, Δζ)=Ic/nFA*C√D……(3)<BR>for an n-electron reversible reduction step, where Δζ=nFΔE/RT, t=jτ with j=1, 2, 3, …, A=electrode surface area and other symbols have usual meanings. Experimental results generally agreed with theoretical predictions (for 10 ppm Cd2+ in 0.1 M KCl with Hanging mercury drop electrode). By staircase convolution voltammetry the charging current was effectively eliminated and linear correlations between Ic and concentration were obtaind for Cd2+ and Pb2+ in the concentration range from 10-7 to 10-4 M.
収録刊行物
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- 分析化学
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分析化学 28 (12), 743-748, 1979
公益社団法人 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
- 1390001204051048192
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- NII論文ID
- 110002907976
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- NII書誌ID
- AN00222633
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- NDL書誌ID
- 2071764
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- ISSN
- 05251931
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可