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问题:在定量分析中,计算准确度(或精密度)的方法,根据湖南药品检验所采用的是用两次分析结果的差数与其算术平均值之比所得的百分数即为其误差度,而广州药品检验所则采用平均偏差以表示其准确度,即以数次分析的结果的算术平均值,与每次分析的结果的差数总和除以分析的次数,得一平均偏差,平均偏差与算术平均值之比,得一百分数即为其精密度(或准确度)。例:标化 HCl 时,第一次结果为0.1023 N,第二次结果为0.1025 N。以湖南药检所算法得两次误差为:
Question: In the quantitative analysis, the method for calculating the accuracy (or precision) is based on the percentage of the difference between the arithmetic mean and the difference between the results of the two analysis results used by the Hunan Drug Inspection Corporation. The Guangzhou Institute for Drug Control uses the average deviation to represent its accuracy, that is, the arithmetic average of the results of several analyses, and the sum of the differences of the results of each analysis divided by the number of analyses, resulting in an average deviation, average deviation and The ratio of the arithmetic mean to one hundred points is its precision (or accuracy). Example: When standardizing HCl, the first result is 0.1023 N, and the second result is 0.1025 N. Two errors in the algorithm of Hunan Institute of Drug Control are: