英国留学生护理论文代写 评估的实践

被评估的实践的另一个方面是运行内精度,也称为测定内精度和运行间精度或测定间精度,也被称为。运行内精密度用于测定所使用的测定方法的精密度。这是通过多次测量汇集的血浆样品的吸光度,评估结果的重复性以及结果的精度来实现的。在相同条件下连续测量后,根据它们之间的一致程度来评估结果。在这个实际中,样品被测量了10次。在给定的水平下,一天和一次运行中,一个样本的理想重复次数是20次。这将给测定的重复性提供一个概念。平均值、标准差和百分比变异系数都得到了,以确定该分析的精确度。还对运行间精度进行了评估。这是一个更好的指标精确度的方法比在运行。这是因为它是测量随机误差的方法。这些错误之一是不同的人进行分析。由CLSI产生的EP05-A2文件旨在确定实验室使用的方法的精度。该评估分两个级别进行,每次运行至少包含10个样本,并应包含至少一个质量控制样本(Chesher, 2008)。对照1和对照3的白蛋白浓度(g/l)的分级结果用于此评估。同样,平均值、标准差和百分比变异系数都被确定,并与制造商的比较。这样就可以在精度方面比较每个控件的类结果和制造商的控件结果。

英国留学生护理论文代写 评估的实践

Another aspect of this practical that was evaluated is the within-run precision, also known as intra-assay precision and the between-run precision or inter-assay precision, as it is also referred to as. Within-run precision is used to determine the precision of the assay being used. This is carried out by measuring the absorbance of a pooled plasma sample a number of times, assessing the repeatability of the results and so, the precision of the results. The results are assessed on how close they are in agreement to each other after being measured successively under the same conditions. In this practical the sample was measured 10 times. The ideal amount of times a sample should be repeated at a given level, in a single day and in a single run is 20. This will give an idea of the repeatability of the assay. The mean, standard deviation and percentage coefficient of variation were all obtained in order to determine how precise the assay was. Between-run precision was also evaluated. This is a better indicator of the precision of a method than that of within run. This is so as it is a measure of random error of the method. One of these errors being different people carrying out the assay. The EP05-A2, a document produced by the CLSI, is intended to determine the precision of the methods used by the laboratory. This assessment is carried out at two levels, containing at least ten samples per run and should contain at least one sample of quality control (Chesher, 2008). The class results for the albumin concentration (g/l) for both Control 1 and Control 3 were used for this evaluation. Again, the mean, standard deviation and percentage coefficient of variation were all determined and compared to that of the manufacturers. This enabled the comparison of the class results for each control and the manufacturer’s control results in terms of precision .

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