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目的建立费休氏法测定头孢克肟片水分的不确定度评定。方法根据头孢克肟片水分测定公式,分析了测定结果的不确定度来源,对测定中的不确定度分量进行了评估。结果计算出的合成标准不确定度为0.14%,扩展不确定度为0.28%。结论本文建立的方法适用于费休氏法测定头孢克肟片水分含量的不确定度评定。
OBJECTIVE To establish the evaluation of the uncertainty of the determination of cefixime tablets by Fisher’s method. Methods According to the determination formula of cefixime hydrophyll tablet, the sources of uncertainty of the determination results were analyzed and the components of uncertainty in the determination were evaluated. Results The calculated standard uncertainty was 0.14% and the expanded uncertainty was 0.28%. Conclusion The method established in this paper is suitable for the evaluation of the uncertainty of the determination of cefixime tablets by Fisher’s method.