Extraction of Trace Amounts of Copper(II) on a Membrane Filter Using 5, 10, 15, 20-Tetraphenyl-21H, 23H-porphinetetrasulfonic Acid for the Determination by Solid-Phase Spectrophotometry

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抄録

A highly sensitive solid-phase spectrophotometric method for the determination of trace amounts of copper(II) using 5,10,15,20-tetraphenyl-21H,23H-porphinetetrasulfonic acid (TPPS) is described. The copper(II)-TPPS complex was extracted on a membrane filter from an acidic solution containing Zephiramine (benzyldimethyltetradecylammonium chloride) and a large excess of perchlorate ion, leaving excess TPPS in the solution. The solid-phase absorbance of the copper(II)-TPPS complex on the membrane filter was measured at 417 nm. A linear calibration graph was obtained for up to 20 ng of copper(II) in a 20 ml sample volume; the limit of detection was 0.15 ng, based on three-times the standard deviation of the blank value. The proposed method was applied to the determination of copper in tap, river and sea water samples. The results are in fair agreement with those obtained by suspension-introduction graphite-furnace atomic absorption spectrometry using ammonium pyrrolidinedithiocarbamate and finely divided anion-exchange resin.

収録刊行物

  • Analytical sciences : the international journal of the Japan Society for Analytical Chemistry  

    Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 15(2), 153-157, 1999-02 

    社団法人 日本分析化学会

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各種コード

  • NII論文ID(NAID)
    10002418709
  • NII書誌ID(NCID)
    AA10500785
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09106340
  • NDL 記事登録ID
    4648369
  • NDL 雑誌分類
    ZP4(科学技術--化学・化学工業--分析化学)
  • NDL 請求記号
    Z54-F482
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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