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頁籤選單縮合
題名 | 電子光譜及動力學方法研究環糊精包結體系=UV-vis and Stopped Flow Studies on Methyl Orange/Cyclodextrin Systems |
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作者姓名(中文) | 魯潤華; 夏春谷; 汪漢卿; 童林薈; | 書刊名 | 化學 |
卷期 | 56:2 1998.06[民87.06] |
頁次 | 頁89-94 |
分類號 | 336.514、336.514 |
關鍵詞 | 甲基橙; 環糊精; 紫外光譜; 停留反應動力學; Methyl orange; Cyclodextrin; UV-vis spectroscopy; Stopped flow; |
語文 | 中文(Chinese) |
中文摘要 | 用紫外光譜法研究了甲基橙( MO )與α-,β-CD 包結體系,並用停留反應動力 學方法( Stopped flow )研究了α -CD-MO 包結體系的動力學。 α -CD 與 MO 的反應為 準一級,α -CD 濃度與所測得的速率 k 之間存在線性關係,由此計算了體系的正、逆反應 速率,並得到體系在室溫下、pH 1.4 時的結合常數。 |
英文摘要 | Inclusion complexes of α-, β-CD with methly orange (MO) have been investigated by Uv-visible spectroscopy, and inclusion reactions of α -CD with MO have also been studied in aqueous solutions by means of stopped-flow method. The inclusion process of α -CD with MO follows one-step reaction mechanism, and fits pseudo-first-order reaction model. There is a linelar relationship between α -CD concentration and the observed rate data (k ), and thus the forward and backward rate constants are determined. |
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