| 紫外分光光度法测定酚酞片含量的不确定度评定 |
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| 引用本文： | 陈建琴. 紫外分光光度法测定酚酞片含量的不确定度评定[J]. 中国药房, 2007, 18(19): 1500-1501 |
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| 作者姓名： | 陈建琴 |
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| 作者单位： | 南宁市食品药品检验所,南宁市,530001 |
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| 摘 要： | 目的:评定以紫外分光光度法测定酚酞片含量的不确定度。方法:根据《测量不确定度评定与表示》,并参考《化学分析中不确定度的评估指南》,对酚酞片的含量测定进行测量不确定度的分析与评定。结果:扩展不确定度为1.0%,相对扩展不确定度为1.0%,含量测定结果可表示为(97.0±1.0)%。结论:严格按照操作规范,尽可能减少稀释过程影响,可有效降低引入的不确定度,保证测定结果准确。
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| 关 键 词： | 酚酞片 紫外分光光度法 含量 不确定度 评定 |
| 文章编号： | 1001-0408（2007）19-1500-02 |
| 收稿时间： | 2006-07-27 |
| 修稿时间： | 2006-07-272006-10-10 |
Evaluation of Uncertainty in the Determination of Phenolphthalein Tablet by UV |
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| CHEN Jianqin. Evaluation of Uncertainty in the Determination of Phenolphthalein Tablet by UV[J]. China Pharmacy, 2007, 18(19): 1500-1501 |
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| Authors: | CHEN Jianqin |
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| Abstract: | OBJECTIVE:To evaluate the uncertainty in the determination of the content of phenolphthalein tablet by UV spectrophotometry.METHODS:The uncertainty in the determination of the content of phenolphthalein tablet was analyzed and evaluated based on"Evaluation and Expression of Uncertainty Measurement"and the"Manual of Uncertainty Evaluation in Chemical Analysis".RESULTS:Both the expanded uncertainty U95 and the relative expanded uncertainty Urel were 1.0%.The content of phenolphthalein tablet was(97.0±1.0)%.CONCLUSION:The introduced uncertainty can be effectively reduced and the determination result can be ensured by strictly following the operation standards and trying to reduce the influence of the dilution process. |
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| Keywords: | Phenolphthalein tablet UV spectrophotometry Content Uncertainty Evaluation |
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