| 298.15 K下NaBr在D-海藻糖和D-纤维二糖水溶液中的活度系数 |
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| 引用本文： | 卓克垒,王文豪 陈玉娟 王键吉.298.15 K下NaBr在D-海藻糖和D-纤维二糖水溶液中的活度系数[J].中国化学,2009,27(4):707-712. |
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| 作者姓名： | 卓克垒 王文豪 陈玉娟 王键吉 |
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| 作者单位： | (河南师范大学化学与环境科学学院 河南 新乡 453007) |
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| 摘 要： | 通过测定由离子选择性电极组成的电池的电动势, 分别求得了298.15 K下NaBr和二糖（D-海藻糖/D-纤维二糖）在NaBr–D-海藻糖/D-纤维二糖–水三元体系中的活度系数, 计算了NaBr和这两种二糖的相互作用参数C1. 基于糖立体结构比较讨论了NaBr与海藻糖、纤维二糖和葡萄糖相互作用的差异.
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| 关 键 词： | 活度系数 离子选择性电极 NaBr 海藻糖 纤维二糖 |
| 收稿时间： | 2008-8-25 |
| 修稿时间： | 2008-10-23 |
Activity Coefficients for NaBr in Aqueous D‐Trehalose/D‐Cellobiose Solutions at 298.15 K |
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| Kelei ZHUO,Wenhao WANG,Yujuan CHEN,Jianji WANG.Activity Coefficients for NaBr in Aqueous D‐Trehalose/D‐Cellobiose Solutions at 298.15 K[J].Chinese Journal of Chemistry,2009,27(4):707-712. |
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| Authors: | Kelei ZHUO Wenhao WANG Yujuan CHEN Jianji WANG |
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| Institution: | 1. Tel.: 0086‐0373‐3326336;2. Fax: 0086‐0373‐3326336;3. School of Chemistry and Environmental Science, Henan Normal University, Xinxiang, Henan 453007, China |
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| Abstract: | The ionic mean activity coefficients of NaBr in trehalose‐water and cellobiose‐water mixtures have been experimentally determined at 298.15 K from electrochemical potential measurements by an electrochemical cell containing two ion selective electrodes (ISE), together with the activity coefficients of the disaccharides. The parameters C1 representing the pair interactions between the disaccharides and NaBr have been obtained. The interactions of NaBr with trehalose, cellobiose and glucose were compared and discussed in terms of their difference in the stereo‐structures. |
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| Keywords: | activity coefficient ion selective electrode NaBr trehalose cellobiose |
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