| 电导滴定法测定N-琥珀酰壳聚糖取代度 |
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| 引用本文： | 霍秀颖,张小华,吴清. 电导滴定法测定N-琥珀酰壳聚糖取代度[J]. 北京中医药大学学报, 2007, 30(10): 700-702 |
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| 作者姓名： | 霍秀颖 张小华 吴清 |
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| 作者单位： | 北京中医药大学中药学院,北京,100102;北京中医药大学中药学院,北京,100102;北京中医药大学中药学院,北京,100102 |
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| 基金项目： | 高等学校博士学科点专项科研基金资助项目(No.20050026008) |
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| 摘 要： | 目的建立电导滴定法测定N-琥珀酰壳聚糖取代度的方法。方法用NaOH标准溶液滴定溶解于过量HCl标准溶液中的样品,测定电导率值,计算取代度。结果该方法的RSD为1.45%,改变实验条件,取代度无显著性差异。结论该方法操作简便、快捷,重现性好。
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| 关 键 词： | 电导滴定法 N-琥珀酰壳聚糖 取代度 |
| 修稿时间： | 2007-03-05 |
Determination of substitution degree of N-succinyl-chitosan by conductometric titration |
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| HUO Xiu-ying,ZHANG Xiao-hua,WU Qing. Determination of substitution degree of N-succinyl-chitosan by conductometric titration[J]. Journal of Beijing University of Traditional Chinese Medicine, 2007, 30(10): 700-702 |
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| Authors: | HUO Xiu-ying ZHANG Xiao-hua WU Qing |
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| Abstract: | Objective To establish a method for determinating the substitution degree of N-succinyl-chitosan by conductometric titration.Method The sample of N-succinyl-chitosan was dissolved in excess HCl,which then was titrated by standard NaOH.The conductivity of the solution was detected and the substitution degree of N-succinyl-chitosan was calculated.Result The RSD of the method was 1.45%.The substitution degree had no significant difference when the conditions of the experiment were changed.Conclusion The method is easy with a good reproducibility,and prompt to be performed. |
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| Keywords: | conductometric titration N-succinyl-chitosan substitution degree |
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