WEKO3
アイテム
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Although the resolution is still unsatisfactory in this HPLC system, rare- earth metal chelates with this octadentate aromatic polyaminocarboxylate can be detected. This result suggests that these chelates are unexpectedly inert for the dissociation process during elution. The order of elution is quite different from that of the conventional ion-exchange mode separation. Middle-lanthanide ion-Quin2 chelates were most rapidly eluted, followed by the heavy ones; the light ones were the most strongly retained. Since ligand-centered fluorescence was observed for only La^\u003c3+\u003e, Lu^\u003c3+\u003e, Y^\u003c3+\u003e, and Gd^\u003c3+\u003e-Quin2 chelates, and other rare earth metal ion chelates were sufficiently quenched through a paramagnetic deactivation process, these four metal ions were selectively detected by fluorimetric detection (λ_\u003cex\u003e=335 nm, λ_\u003cem\u003e = 500 nm). The detection limits of La^\u003c3+\u003e, Lu^\u003c3+\u003e, and Y^\u003c3+\u003e were 2.2, 4.0, and 1.9 ppb, respectively, on a 3σ basis. No interference from each 10-fold excess of other rare-earth metal ions was observed. 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{"attribute_name": "公開日", "attribute_value": "2008-03-12"}, "publish_date": "2008-03-12", "publish_status": "0", "recid": "13153", "relation": {}, "relation_version_is_last": true, "title": ["8-アミノ-2-[(2-アミノ-5-メチルフェノキシ)メチル]-6-メトキシキノリン- N,N,N\u0027,N\u0027-四酢酸を用いる閉殻希土類金属イオンのプレカラム誘導体化蛍光検出逆相分配高速液体クロマトグラフィー"], "weko_shared_id": 3}
8-アミノ-2-[(2-アミノ-5-メチルフェノキシ)メチル]-6-メトキシキノリン- N,N,N',N'-四酢酸を用いる閉殻希土類金属イオンのプレカラム誘導体化蛍光検出逆相分配高速液体クロマトグラフィー
https://sucra.repo.nii.ac.jp/records/13153
https://sucra.repo.nii.ac.jp/records/131533400e33d-6b01-416e-9747-da0a0d9abcb9
名前 / ファイル | ライセンス | アクション |
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A1002496.pdf (588.2 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-03-12 | |||||
タイトル | ||||||
タイトル | 8-アミノ-2-[(2-アミノ-5-メチルフェノキシ)メチル]-6-メトキシキノリン- N,N,N',N'-四酢酸を用いる閉殻希土類金属イオンのプレカラム誘導体化蛍光検出逆相分配高速液体クロマトグラフィー | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | rare earth metal | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | reversed-phase HPLC | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | fluorescence detection | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Quin2 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | metal chelate | |||||
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 | |||||
タイトル(別言語) | ||||||
その他のタイトル | Fluorescence determination of closed-shell rare earth metal ions by reversed-phase HPLC with precolumn derivatization using 8-amino-2- [(2-amino-5-methylphenoxy) methyl]-6-methoxyquinoline-N, N, N', N'-tetraacetate | |||||
著者 |
齋藤, 伸吾
× 齋藤, 伸吾× 許, 文哲× 星野, 仁× 四ツ柳, 隆夫 |
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著者 ローマ字 | ||||||
SAITO, Shingo | ||||||
著者 ローマ字 | ||||||
Xu, Wen-zhe | ||||||
著者 ローマ字 | ||||||
HOSHINO, Hitoshi | ||||||
著者 ローマ字 | ||||||
YOTSUYANAGI, Takao | ||||||
著者 所属 | ||||||
東北大学大学院工学研究科応用化学専攻 | ||||||
著者 所属 | ||||||
東北大学大学院工学研究科応用化学専攻 | ||||||
著者 所属 | ||||||
東北大学大学院工学研究科応用化学専攻 | ||||||
著者 所属 | ||||||
東北大学大学院工学研究科応用化学専攻(現 : 宮城工業高等専門学校) | ||||||
著者 所属(別言語) | ||||||
Department of Applied Chemistry, Graduate School of Engineering, Tohoku University | ||||||
著者 所属(別言語) | ||||||
Department of Applied Chemistry, Graduate School of Engineering, Tohoku University | ||||||
著者 所属(別言語) | ||||||
Department of Applied Chemistry, Graduate School of Engineering, Tohoku University | ||||||
著者 所属(別言語) | ||||||
Department of Applied Chemistry, Graduate School of Engineering, Tohoku University(Present : Miyagi National College of Technology) | ||||||
書誌情報 |
分析化学 巻 50, 号 2, p. 113-117, 発行日 2001 |
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年月次 | ||||||
2001-2 | ||||||
出版者名 | ||||||
出版者 | 社団法人日本分析化学会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 05251931 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 解離不活性化学種だけを検出できるプレカラム誘導体化高速液体クロマトグラフィーを用いて, 閉殻希土類金属イオンの高感度・高選択的蛍光検出法を開発した. プレカラム誘導体化試薬として8-アミノ-2-[(2-アミノ-5-メチルフェノキシ)メチル]-6-メトキシキノリン-N, N, N', N'-四酢酸(Quin2)を用いた. 通常, ランタノイドイオン(Ln^<3+>)は解離活性化学種を形成するが, Ln^<3+>-Quin2錨体がプレカラム法で検出できたことは, これらの錯体が解離不活性化学種であることを示唆する. また, オンカラム錯形成モードHPLCにおける溶出挙動と異なり, 本システムにおける溶出順は中希土, 重希士, 軽希土類の順であった. また, 錯体の発光挙動は, La^<3+>,Lu^<3+>,Gd^<3+>及びY^<3+>だけが配位子由来の蛍光を有していた. これらの現象を利用し, La^<3+>, Lu^<3+>及びY^<3+>の分離検出を行い, それぞれの金属に対しほかのLn^<3+>の妨害なくppbレベルの検出限界を達成した. A sensitive and selective determination of closed-shell rare earth metal ions (La^<3+>, Lu^<3+>, and Y^<3+>) has been demonstrated using a pre-column chelating reagent {8-amino-2-[(2-amino-5-methylphenoxy)methyl]-6-methoxyquinoline-N, N, N', N'-tetraacetatic acid (Quin2)}, in reversed-phase HPLC. Although the resolution is still unsatisfactory in this HPLC system, rare- earth metal chelates with this octadentate aromatic polyaminocarboxylate can be detected. This result suggests that these chelates are unexpectedly inert for the dissociation process during elution. The order of elution is quite different from that of the conventional ion-exchange mode separation. Middle-lanthanide ion-Quin2 chelates were most rapidly eluted, followed by the heavy ones; the light ones were the most strongly retained. Since ligand-centered fluorescence was observed for only La^<3+>, Lu^<3+>, Y^<3+>, and Gd^<3+>-Quin2 chelates, and other rare earth metal ion chelates were sufficiently quenched through a paramagnetic deactivation process, these four metal ions were selectively detected by fluorimetric detection (λ_<ex>=335 nm, λ_<em> = 500 nm). The detection limits of La^<3+>, Lu^<3+>, and Y^<3+> were 2.2, 4.0, and 1.9 ppb, respectively, on a 3σ basis. No interference from each 10-fold excess of other rare-earth metal ions was observed. The success of this HPLC system for rare- earth ions is derived from the combined properties of the Quin2 chelates in terms of inertness, chromatographic retention and fluorescence detection. |
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その他の言語 | ||||||
言語 | eng | |||||
版 | ||||||
[出版社版] | ||||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
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 | 2008-03-11 | |||||
日付タイプ | Created | |||||
アイテムID | ||||||
A1002496 |