| 导数光谱法测定微乳中维生素C的含量 |
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| 引用本文： | 张正全,陆彬,杨秀岑. 导数光谱法测定微乳中维生素C的含量[J]. 华西药学杂志, 2001, 16(1): 46-47 |
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| 作者姓名： | 张正全 陆彬 杨秀岑 |
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| 作者单位： | 华西医科大学药学院,;华西医科大学药学院,;华西医科大学药学院, |
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| 摘 要： | 目的：探讨微乳中药物的测定方法。方法分别利用二阶及三阶导数光谱测定了维生素C（VitC)的O／W及W／O型微乳中VitC的含量。结果：平均回收率及精密度分别达到98．1％,RSD％＝0．62（n=12);99.0%,RSD=0.52(n=12)。结论：该法简便,适合Vit微乳的含量测定。为保证结果可靠,样品需作前处理。
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| 关 键 词： | 微乳 维生素C 二阶导数光谱 三阶导数光谱 |
| 文章编号： | 1006-0103(2001)01-0046-02 |
| 修稿时间： | 2000-06-01 |
DERIVATIVE SPECTROPHOTOMETRIC DETERMINATION OF VITAMIN C IN MICROEMULSIONS |
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| ZHANG Zheng-quan,LU Bin,YANG Xiu-cen. DERIVATIVE SPECTROPHOTOMETRIC DETERMINATION OF VITAMIN C IN MICROEMULSIONS[J]. West China Journal of Pharmaceutical Sciences, 2001, 16(1): 46-47 |
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| Authors: | ZHANG Zheng-quan LU Bin YANG Xiu-cen |
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| Abstract: | OBJECTIVE:To investigate the method for determination of vitamin C in microemulsions. METHODS:The content of vitamin C in O/W microemulsions and W/O microemulsions was determined by second order derivative spectrophotometry and third order derivative spectrophotometry, respectively.RESULTS:The recovery and accuracy are 98.1%, RSD%=0.62 (n =3) and 99.0%, RSD%=0.52 (n =3), respectively.CONCLUSION:This method has the advantage of simplicity and is suitable for determination of the content of vitamin C in microemulsions. |
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| Keywords: | Microemulsions Vitamin C Second order derivative spectrophotometry Third order derivative spectrophotometry |
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