| 电化学法研究罗丹明B与壳聚糖的相互作用 |
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| 引用本文： | 王欢,顾玲,马蕊. 电化学法研究罗丹明B与壳聚糖的相互作用[J]. 分析试验室, 2009, 28(12) |
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| 作者姓名： | 王欢 顾玲 马蕊 |
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| 作者单位： | 1. 咸阳师范学院化学系,咸阳,712000
2. 陕西科技大学化学与化工学院,西安,710021 |
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| 基金项目： | 咸阳师范学院专项科研基金 |
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| 摘 要： | 用电化学方法研究了罗丹明B与壳聚糖(CS)的相互作用,在pH 3.0的NaAc-HAc缓冲溶液中,罗丹明B在-0.67 V(vs.SCE)处有一个灵敏的线性扫描二阶导数极谱波,当加入一定量的CS后,反应体系的电化学信号发生变化,结果表明,罗丹明B与壳聚糖可形成结合物,结合物的峰电流在一定范围内与壳聚糖的浓度成正比,因而可用于测定壳聚糖的含量.此外,实验还探讨了罗丹明B与壳聚糖的最大结合数,为进一步研究有机染料与多糖的结合提供了理论基础.
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| 关 键 词： | 罗丹明B 壳聚糖 电分析化学 |
Electrochemical studies on the binding reaction between chitosan and rhodamine B |
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| WANG Huan,GU Ling,MA Rui. Electrochemical studies on the binding reaction between chitosan and rhodamine B[J]. Chinese Journal of Analysis Laboratory, 2009, 28(12) |
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| Authors: | WANG Huan GU Ling MA Rui |
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| Abstract: | An electrochemical study on the interaction between rhodamine B(RDB) and chitosan(CS) was investigated in 0.1 mol/L HAc-NaAc buffer solution(pH 3).RDB had a well-defioed second order derivative polarographic wave at-0.76 V.The addition of CS in the RDB solution resulted in the decrease of the peak current with the positively shift of the peak potential,which indicated that an supermolecular complex was formed.The experiment results confirmed that the concentration of RDB-CS was proportional to the peak curr... |
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| Keywords: | Rhodamine B Chitosan Electro-analytical chemistry |
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