| 壳聚糖相对分子质量的测定方法 |
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| 引用本文： | 方文建,隋斯光,郑连英.壳聚糖相对分子质量的测定方法[J].化工进展,2006,25(4):420-423. |
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| 作者姓名： | 方文建 隋斯光 郑连英 |
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| 作者单位： | 浙江大学化学工程与生物工程学系 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 讨论了利用HPLC、特性黏度、动态黏度3种方法的关联来推导测定壳聚糖相对分子质量的简便方法。对6种壳聚糖样品，采用HPLC凝胶系统测定相对分子质量，利用乌氏黏度计一点法测定特性黏度，得出MHS方程为η] = 3.72 × 10－5Mw1.37。同时还建立了10 mg/mL壳聚糖溶液降解过程中相对分子质量和动态黏度之间的关系。
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| 关 键 词： | 壳聚糖 相对分子质量 一点法 特性黏度 动态黏度 |
| 文章编号： | 1000-6618（2006）04-0420-04 |
| 收稿时间： | 2005-10-11 |
| 修稿时间： | 2006-12-31 |
Determination of the relative molecular weight of chitosan |
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| FANG Wenjian,SUI Siguang,ZHENG Lianying.Determination of the relative molecular weight of chitosan[J].Chemical Industry and Engineering Progress,2006,25(4):420-423. |
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| Authors: | FANG Wenjian SUI Siguang ZHENG Lianying |
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| Affiliation: | Department of Chemical and Biochemical Engineering，Zhejiang University |
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| Abstract: | The relative molecular weight of chitosan was determined by the relationships of three methods, HPLC, intrinsic viscosity, and dynamics viscosity. The intrinsic viscosity of chitosan solution was measured with one-point Ubbelohde viscometer, the relative molecular weight of chitosan was determined with HPLC, and the MHS equation was obtained as η] = 3.72 × 10－5Mw 1.37. This paper also sets up the relationship between dynamics viscosity and the molecular weight of chitosan during 10 mg/mL solution degradation by chitosanase. |
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| Keywords: | chitosan relative molecular weight one-point methodi ntrinsic viscosity dynamic viscosity |
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