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A variety of lipophilic amines incorporated in liquid membranes exhibit potentiometric responses to neutral phenols
http://hdl.handle.net/10252/1097
http://hdl.handle.net/10252/10974b66ca4b-6356-4e71-a666-f242a8ef24a6
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
19_pdf.pdf (99.4 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-09-10 | |||||
| タイトル | ||||||
| タイトル | A variety of lipophilic amines incorporated in liquid membranes exhibit potentiometric responses to neutral phenols | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | liquid membrane electrode | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | lipophilic amine | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | potentiometric response | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | phenolic analyte | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | response mechanism | |||||
| 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 |
Ito, Takashi
× Ito, Takashi× Radecka, Hanna× Umezawa, Kayoko× Kimura, Tatsuji× Yashiro, Akiko× Lin, Xiao Ming× Kataoka, Masamitsu× Kimura, Eiichi× Sessler, Jonathan L.× Odashima, Kazunori× Umezawa, Yoshio |
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| 書誌情報 |
en : Analytical sciences 巻 14, 号 1, p. 89-98, 発行日 1998-01 |
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| 出版者 | ||||||
| 出版者 | 日本分析化学会 | |||||
| 言語 | ja | |||||
| ISSN / EISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0910-6340 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.2116/analsci.14.89 | |||||
| 書誌ID（NCID） | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA10500785 | |||||
| テキストバージョン | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 日本十進分類法 | ||||||
| 言語 | ja | |||||
| 主題Scheme | NDC | |||||
| 主題 | 433 | |||||
| NIIサブジェクト | ||||||
| 言語 | ja | |||||
| 主題Scheme | Other | |||||
| 主題 | 化学 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A variety of lipophilic amines incorporated in PVC matrix liquid membranes exhibited anionic potentiometric responses to phenolic compounds at the pH conditions under which the phenols exist mainly or exclusively in their undissociated, neutral forms. The examined lipophilic amines include a macrocyclic pentaamine, tri(decyl)amine, 4,7-dephenyl-1,10-phenanthroline (bathophenanthroline), 4-octadecylpyridine, and sapphyrin. The potentiometric selectivities of the membranes based on lipophilic aliphatic amines (B) reflected the acidity (hydrogen bond donor activity) and lipophilicity (extractability) of the phenols (ArOH), similarly as membranes based on lipophilic quaternary ammonium salts (Q^+X^-). The anionic responses were explained on the basis of a decrease in the charge separation of protonated amines (BH^+) and their counteranions (X^-) across the membrane interface. Possible processes leading to a decrease in the charge separation between BH^+ and X^- are (i) complexation between ArOH and BH^+X^-, followed by proton dissociation and ejection of HX into the aqueous phase, as well as (ii) complexation between ArOH and B. The membrane based on sapphyrin showed a high potentiometric selectivity to catechol, possibly due to geometrical discrimination of the ortho dihydroxy structure of catechol by the nitrogen(s) on the rigid macrocyclic structure of sapphyrin. | |||||
| 言語 | en | |||||
