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Indirect spectrophotometric determination of arsenic(III) based on solid-phase extraction

Research Project

Project/Area Number 13640596
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 分離・精製・検出法
Research InstitutionHirosaki University

Principal Investigator

OHZEKI Kunio  Hirosaki Univ., Faculty of Science and Technology, Professor, 理工学部, 教授 (30001845)

Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2003: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2002: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2001: ¥2,200,000 (Direct Cost: ¥2,200,000)
Keywordsarsenic(III) / arsenic(III,V) / arsenic(III)-APDC complex / copper(II)-APDC complex / finely divided ion-exchange resin / resin-phase extraction / resin-phase spectrophotometry / ヒ素 / 間接固相吸光光度法 / イオン交換樹脂薄層 / 固相抽出 / ヒ素-APDC錯体 / 固相吸光光度定量
Research Abstract

A new method for the indirect spectrophotometic determination of arsenic was developed. This method is based on the extraction of arsenic(III) from a solution of pH 1.5 on a finely divided anion-exchange resin as a complex with ammonium pyrrolidinedithiocarbamate(APDC), separation of the resin fixing the As(III)-APDC complex from the bulk solution on a membrane filter, re-dispersion of the resin in a solution containing copper(II) and conversion a coloreless As(III)-APDC complex to a yellow Cu(II)-APDC complex, collection of the rsin on a membrane filter and measurement of the absorbance of the resulting Cu(II)-APDC complex in the resin phase by a spectrophotometer or a densitometer. The effects of interfering ions were successfully suppressed with the combined use of diethyldithiocarbamate(DDTC) and EDTA. The method was applied to a standard river water sample. Good results were obtained for the detemination of arsenic(III,V) at the ppb level in 40ml of the sample.

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (3 results)

All Other

All Publications (3 results)

  • [Publications] 佐野祐司, 加藤朋美, 糠塚いそし, 大関邦夫: "ヒ素-APDC錯体の固相抽出と銅-APDC錯体への変換に基づくヒ素(III)の吸光光度定量"分析化学. 52巻・12号. 1153-1158 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yuuji SANO, Tomomi KATO, Isoshi NUKATSUKA, Kunio OHZEKI: "Spectrpphotometric Determination of arsenic(III) based on solid-phase extraction of the arsenic-APDC complex and the conversion to the copper complex"BUNSEKI KAGAKU. Vol.52, No.12. 1153-1158 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 佐野祐司, 加藤朋美, 糠塚いそし, 大関邦夫: "ヒ素-APDC錯体の固相抽出と銅-APDC錯体への変換に基づくヒ素(III)の吸光光度定量"分析化学. 52巻・12号. 1153-1158 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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