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Effect of the Net Surface Charge Density of Heptakis-6-bromo-6-deoxy-β-cyclodextrin Bonded Silica Gels on the Retention Behaviors of Neutral Cresol Isomers in HPLC
https://nitech.repo.nii.ac.jp/records/5291
https://nitech.repo.nii.ac.jp/records/52912b979049-eb98-492b-bde5-60b8273a9d72
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
本文_fulltext (122.6 kB)
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2006 cThe 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 | Effect of the Net Surface Charge Density of Heptakis-6-bromo-6-deoxy-β-cyclodextrin Bonded Silica Gels on the Retention Behaviors of Neutral Cresol Isomers in HPLC | |||||||||||
| 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 |
Nakagawa, Hiroyuki
× Nakagawa, Hiroyuki
× Kitagawa, Shinya
× Ohtani, Hajime
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| 著者別名 | ||||||||||||
| 姓名 | 北川, 慎也 | |||||||||||
| 著者別名 | ||||||||||||
| 姓名 | Ohtani, Hajime | |||||||||||
| 書誌情報 |
en : Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 巻 22, 号 5, p. 737-742, 発行日 2006-05 |
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| 出版者 | ||||||||||||
| 出版者 | The Japan Society for Analytical Chemistry | |||||||||||
| 言語 | en | |||||||||||
| ISSN | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 0910-6340 | |||||||||||
| item_10001_source_id_32 | ||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||
| 収録物識別子 | AA10500785 | |||||||||||
| 出版タイプ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
| item_10001_relation_34 | ||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | http://dx.doi.org/10.2116/analsci.22.737 | |||||||||||
| 関連名称 | 10.2116/analsci.22.737 | |||||||||||
| 内容記述 | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | The effect of the surface charge density of heptakis-6-bromo-6-deoxy-β-cyclodextrin (β-CD-BR) bonded silica gels, which was used as the stationary phase of a packed capillary column for HPLC, was investigated concerning the retention behaviors of neutral cresol isomers. On the whole, the retention factors of the cresol isomers increased with an increase in the pH values of the mobile phase, although they were slightly smaller at pH 6.1 than at pH 4.7. An investigation on the retention variation using a van't Hoff plot revealed that the increase in the retention factor (k) at a higher pH region could be mainly attributed to the increase in ΔS, while a partial decrease in k around pH 5 - 6 was caused by a decrease in the -ΔH/T value. On the other hand, a measurement of the electroosmotic flow velocity under various pH of the mobile phase solutions revealed that the retention variations of the neutral cresol isomers were strongly correlated with the surface charge on the packing materials. The positive charge of secondary ammonium functional groups to bind β-CD-BR inhibit the insertion of the cresol isomers into the cavity of β-CD-BR while reducing the retention factor, whereas the negative charge of silanol group enhanced it through a local change in the mobile phase composition. | |||||||||||
| 言語 | en | |||||||||||
