BCSJ Award Article : Preconcentration of Trace Metals in Water Using a Newly Designed Thermoresponsive Chelating Polymer for the Sensitive Determination by Graphite Furnace Atomic Absorption Spectrometry

• Saitoh Tohru

  Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University

• Arakawa Akihiro

  Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University

• Hiraide Masataka

  Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University

書誌事項

タイトル別名

• Preconcentration of Trace Metals in Water Using a Newly Designed Thermoresponsive Chelating Polymer for the Sensitive Determination by Graphite Furnace Atomic Absorption Spectrometry

抄録

A thermoresponsive polymer containing highly dense iminodiacetic acid segments was newly designed for the efficient preconcentration of trace metals in water. The polymer was synthesized by the water-soluble carbodiimide-mediated condensation of poly(N-isopropylacrylamide-co-acrylic acid) with polyallylamine and the subsequent conversion of amino groups to iminodiacetic acid. Metal ions in water were collected by adding the thermoresponsive polymer, sodium nitrate, dodecyltrimethylammonium chroride, and buffer components and then heating the resulting solution to form polymer deposits. The use of 0.02% (w/v) thermoresponsive polymer allowed the nearly complete (>99.8%) collection of seven metals (Be, Co, Ni, Cu, Cd, In, and Pb) in the pH range of 6.8–8.3. The polymer deposits were readily collected as a condensed coagulate and dissolved with a small amount of water for the analysis by graphite furnace atomic absorption spectrometry. Because of highly efficient (100-fold) concentration, these metals at pg cm⁻³–ng cm⁻³ levels were successfully determined. The precision and accuracy were evaluated by analyzing certified reference water samples.

収録刊行物

• Bulletin of the Chemical Society of Japan

  Bulletin of the Chemical Society of Japan 86 (4), 438-444, 2013

  公益社団法人 日本化学会

キーワード

• General Chemistry

詳細情報

• CRID: 1390282679120839296
• NII論文ID: 10031162149
• NII書誌ID: AA00580132
• DOI: 10.1246/bcsj.20120284
• COI: 1:CAS:528:DC%2BC3sXntFWmsbc%3D
• ISSN: 13480634
• ISSN: 00092673
• NDL書誌ID: 024403177
• Web Site: http://id.ndl.go.jp/bib/024403177
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024403177
• Web Site: https://academic.oup.com/bcsj/article-pdf/86/4/438/56275254/bcsj.20120284.pdf
• 本文言語コード: en
• データソース種別:
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