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タイトル: Separation of dissolved iron from the aqueous system with excess ligand
著者: Hasegawa, Hiroshi link image link image
Rahman, Ismail M. M.
Kinoshita, Sanae
Maki, Teruya link image link image
Furusho, Yoshiaki
長谷川, 浩
牧, 輝弥
発行日: 2011年 2月 8日
出版社(者): Elsevier
雑誌名: Chemosphere
ISSN: 0045-6535
巻: 82
号: 8
開始ページ: 1161
終了ページ: 1167
キーワード: Atomic absorption spectrometry
Dissolved iron
Excess ligand in aqueous solution
Molecular recognition technology
Pre-concentration
抄録: A new technique for the separation and pre-concentration of dissolved Fe(III) from the ligand-rich aqueous system is proposed. A solid phase extraction (SPE) system with an immobilized macrocyclic material, commonly known as molecular recognition technology (MRT) gel and available commercially, was used. Synthetic Fe(III) solution in aqueous matrices spiked with a 100-fold concentration of EDTA was used. Dissolved iron that was 'captured' by the MRT gel was eluted using hydrochloric acid and subsequently determined by graphite furnace atomic absorption spectrometry. The effect of different variables, such as pH, reagent concentration, flow rate and interfering ions, on the recovery of analyte was investigated. Quantitative maximum separation (~100%) of the dissolved Fe(III) from synthetic aqueous solutions at a natural pH range was observed at a flow rate of 0.2mLmin-1. The extraction efficiency of the MRT gel is largely unaltered by the coexisting ions commonly found in natural water. When compared with different SPE materials, the separation performance of MRT gel is also much higher. © 2010 Elsevier Ltd.
DOI: 10.1016/j.chemosphere.2010.12.048
URI: http://hdl.handle.net/2297/26262
関連URI: http://www.elsevier.com/locate/issn/00456535
資料種別: Journal Article
版表示: author
出現コレクション:1.査読済論文(工)

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