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Determination of Formation and Partition Constants of Ion Associates in Extraction of Cationic Cobalt(III) Complexes with Pyridylazo Compounds
https://nitech.repo.nii.ac.jp/records/3537
https://nitech.repo.nii.ac.jp/records/353788554d8c-b92e-41df-8407-b0e9d96eca21
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
本文_fulltext (239.1 kB)
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2001 c The Japan Society for Analytical Chemistry
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2012-11-06 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Determination of Formation and Partition Constants of Ion Associates in Extraction of Cationic Cobalt(III) Complexes with Pyridylazo Compounds | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| 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 |
Yasui, Takashi
× Yasui, Takashi
× Miyake, Fumiko
× Yamada, Hiromichi
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| 著者別名 | ||||||||||||
| 姓名 | 安井, 孝志 | |||||||||||
| bibliographic_information |
en : Proceedings of IUPAC International Congress on Analytical Sciences 2001 (ICAS 2001) p. i1349-i1352, 発行日 2001 |
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| 出版者 | ||||||||||||
| 出版者 | The Japan Society for Analytical Chemistry | |||||||||||
| 言語 | en | |||||||||||
| 出版タイプ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
| 内容記述 | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | The extractions of cationic cobalt(III) complexes with four kinds of pyridylazo compounds using alcohol or chloroform were carried out. The formation and partition constants of ion associates formed with the cationic cobalt(III) complex and a counter anion (ClO4-, SCN-, Br-, Cl-) were determined by an analysis of the extraction equilibria. By using 1-nonanol instead of 1-octanol as the organic solvent, the formation constants of ion associates increased (Δ log Kf ? 0.4), while their partition constants decreased (Δ log KD ? -0.3) in all present systems. Moreover, only in the 4-methyl-2-(2-pyridylazo)phenol (PAC) system, the formation constant for the chloride ion system (log Kf = 1.7) was observed to be greater than that for the bromide ion system (log Kf = 1.0). The formation constants of ion associates were found to be mostly dependent on the bulkiness and the polarity of the pyridylazo compounds. These results provide fundamental information on the retention behaviours of cationic complexes in the RP-HPLC. | |||||||||||
| 言語 | en | |||||||||||
