| β-环糊精对中性红及荧光素包合性能的研究 |
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| 引用本文： | 宫斌,黄据芹,王怀友.β-环糊精对中性红及荧光素包合性能的研究[J].化学分析计量,2010,19(2):19-23. |
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| 作者姓名： | 宫斌 黄据芹 王怀友 |
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| 作者单位： | 山东师范大学化学化工与材料科学学院,济南,250014 |
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| 摘 要： | 利用分光光度法及荧光法分别研究了β-环糊精(β-CD)对荧光素和中性红的包合作用,求出β-CD对荧光素和中性红的包结常数K分别为:7.53×103、264 L/mol,包结比n均为1∶1。计算了β-CD对荧光素和中性红包合反应的热力学参数ΔG0、ΔH0及ΔS0,对β-CD对荧光素和中性红的包合作用进行了对比,探讨了pH值、β-CD浓度、放置时间、试剂加入顺序等因素对包合作用的影响。
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| 关 键 词： | 荧光素β-环糊精 中性红 超分子作用 包合物 紫外可见分光光度法 荧光分析法 |
STUDY ON INCLUSION REACTION OF β-CYCLODEXTRIN WITH FLUORESCEIN AND NEUTRAL RED |
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| Gong Bin,Huang Juqin,Wang Huaiyou.STUDY ON INCLUSION REACTION OF β-CYCLODEXTRIN WITH FLUORESCEIN AND NEUTRAL RED[J].Chemical Analysis And Meterage,2010,19(2):19-23. |
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| Authors: | Gong Bin Huang Juqin Wang Huaiyou |
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| Institution: | (College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China) |
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| Abstract: | The inclusion interaction between fluorescein （FL）, neutral red （NR） and β-cyclodextrin have been studied by fluorimetry and spectrophotometry. 7.53×10^3L/mol and 264 L/mol, inclusion constants of FL and NR with β-cyelodextrin, were obtained respectively. With inclusion of β-cyclodextrin stoichiometric ratio was 11 either FL or NR. The thermodynamic parameters, △G^0, △H^0 and △S^0 were calculated. Effects of the pH, reaction time, the addition order of reagents, concentrations of β-cyclodextrin on the inclusion reaction were examined. Also the difference between the two inclusion reactions was discussed. |
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| Keywords: | fluorescein β-cyclodextrin neutral red supramolecular chemistry inclusion complexes UV - Vis spectropho- tometry fluorescence method |
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