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Highly sensitive determination of lanthanides by capillary electrophoresis with direct visible detection after precapillary complexation with aromatic polyaminocarboxylate and additionally applying dynamic ternary complexation with nitrilotriacetic acid
https://sucra.repo.nii.ac.jp/records/13138
https://sucra.repo.nii.ac.jp/records/131389a53327c-c67d-4af7-935f-2da7c110bc20
名前 / ファイル | ライセンス | アクション |
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A1002470.pdf (227.7 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-03-10 | |||||
タイトル | ||||||
タイトル | Highly sensitive determination of lanthanides by capillary electrophoresis with direct visible detection after precapillary complexation with aromatic polyaminocarboxylate and additionally applying dynamic ternary complexation with nitrilotriacetic acid | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | aromatic polyaminocarboxylate | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | dynamic ternary complex formation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | kinetically inert complex | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | lanthanide ion | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
齋藤, 伸吾
× 齋藤, 伸吾× Danzaka, Naoki× 星, 座 |
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著者 ローマ字 | ||||||
Saito, Shingo | ||||||
著者 ローマ字 | ||||||
Danzaka, Naoki | ||||||
著者 ローマ字 | ||||||
Hoshi, Suwaru | ||||||
著者 所属 | ||||||
北見工業大学工学部工学研究科環境化学講座環境分析研究室(現 : 埼玉大学大学院理工学研究科物質科学部門) | ||||||
著者 所属(別言語) | ||||||
Department of Applied and Environmental Chemistry, Kitami Institute of Technology | ||||||
書誌情報 |
Electrophoresis, 巻 27, 号 15, p. 3093-3100, 発行日 2006 |
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年月次 | ||||||
2006-8 | ||||||
出版者名 | ||||||
出版者 | WILEY-V C H VERLAG GMBH | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 01730835 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1002/elps.200500828 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A newly synthesized aromatic polyarninocarboxylate (NBD-ABEDTA, H4L) was applied to precapillary derivatizing capillary electrophoresis as a chelating reagent for lanthanide ions (Ln^<3+>). The Ln-L complexes provide both kinetic stability on dissociation due to their methyl-EDTA coordinating structure, and high light absorptivity (epsilon(max) = 2.4 x 10^4 cm^<-1> mol^<-1> dm^3) in the visible region at 469 nm thanks to their nitrobenzofurazan moiety. A ligand was employed for capillary zone electrophoresis based on a unique concept: both precapillary and dynamic on-capillary complexation were carried out on one center-metal ion to achieve high resolution. As a ternary complex-formation agent, iminodiacetate (IDA), bound to the mother complex (Ln-L), was added to the carrier buffer solution. The carrier buffer solution of 9.5 mmol(.)dm^<-3> (pH 9.45) borate and 33.5 mmol(.)dm^<-3> IDA, drastically improved the resolution among Ln^<3+> ions. Each of the Ln complexes was effectively separated, except for Pr-Sm. Furthermore, the absence of L from the carrier solution, which stabilizes the baseline fluctuation, provided low LOD (typically 4.2 x 10^<-7> mol(.)dm^<-3>). This strongly suggests that Ln-L complexes are kinetically stable even with a large excess of IDA. Quite unexpectedly, the order of migration differs from that of the atomic number, inverting at Nd. This is due to the effect of the cavity size of the residual coordination sites on the ternary complexation and the electronic density of Ln^<3+>. | |||||
注記 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Copyright(c)2006 John Wiley & Sons Ltd | |||||
版 | ||||||
[著者版] | ||||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | text | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
作成日 | ||||||
日付 | 2008-03-10 | |||||
日付タイプ | Created | |||||
アイテムID | ||||||
A1002470 |