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Evaluation of analytical reporting errors generated as described in SW-846 Method 8261A

机译:评估按SW-846方法8261A中所述生成的分析报告错误

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SW-846 Method 8261A incorporates the vacuum distillation of analytes from samples, and their recoveries are characterized by internal standards. The internal standards measure recoveries with confidence intervals as functions of physical properties. The frequency these confidence intervals include true values was very close to theoretical predictions. The ruggedness of the Method's generation of confidence intervals was tested by analyzing water samples that were altered using salt, glycerin, oil, and detergent, and by increasing sample volume. Quality-control requirements were established for identifying when results might not be normally distributed. There were 11,260 analyte results, of which 90.8% of the data passed quality controls. Their distribution about true value was near theoretical values (71.3, 95.0, and 99.2% for one, two and three sigma deviations).
机译:SW-846方法8261A结合了对样品中分析物进行真空蒸馏的方法,其回收率以内标物为特征。内部标准以置信区间作为物理性质的函数来衡量回收率。这些置信区间包含真实值的频率非常接近理论预测。通过分析使用盐,甘油,油和清洁剂更改的水样品并增加样品量来测试方法生成置信区间的坚固性。建立了质量控制要求,以识别何时可能无法正常分配结果。有11,260个分析物结果,其中90.8%的数据通过了质量控制。它们关于真实值的分布接近理论值(一,二和三西格玛偏差的71.3%,95.0和99.2%)。

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