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化学学报
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化学学报 ›› 2003, Vol. 61 ›› Issue (8): 1294-1298. 上一篇    下一篇

研究论文

茜素红与壳聚糖的相互作用机理研究

高贵珍;焦庆才;刘茜;丁一磊;陈雷   

  1. 南京大学生命科学学院
  • 发布日期:2003-08-15

Study on the Mechanism of the Interaction between Chitosan and Alizarin Red

Gao Guizhen;Jiao Qingcai;Liu Qian;Ding Yilei;Chen Lei   

  1. Pharmaceutic Biotechnology Key Laboratory, College of Life Science, Nanjing University
  • Published:2003-08-15

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634

被引次数

38 | 8

应用光谱法研究在pH=5.0的反应体系中壳聚糖（CTS）与茜素红（AR）的结合 反应，考察了反应体系中AR/CTS摩尔比、NaCl浓度及CTS的脱乙酰度对茜素红与壳 聚糖相互作用的影响，通过实验测得CTS对AR的最大结合数N_E=4.78×10~3，理论 模型预测最大结合数N_c=4.73×10~3，实验值与理论值一致，并对壳聚糖与茜素红 的相互作用机理提出了合理的解释。

关键词: 壳聚糖, 茜素红, 分光光度法, 氯化钠, 相互作用

The interaction of chitosan (CTS) and alizarin red (AR) at pH = 5.0 was studied by absorption spectra. The influence of the molar ratio of AR/CTS, different concentrations of NaCl and deacetylation degrees of CTS on the interaction between chitosan and alizarin red was investigated. The maximum binding numbers (N_e = 4.78 * 103, N_c = 4. 73 * 103) were obtained by spectroscopic experiment and theoretical model, respectively. The experimental value is consistent with the theoretical value.

Key words: CHITOSAN, ALIZARINE RED, IR, SODIUM CHLORIDE, INTERACTIONS

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