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Application of Normal Distribution Test in Quality Control for Analytical Data of Groundwater Samples
Author(s): LI Song, RAO Zhu, HUANG Yi, JIA Jing
Pages: 585-
589
Year: 2010
Issue:
5
Journal: Rock and Mineral Analysis
Keyword: 质量控制; 数理统计; 替代物; 正态分布;
Abstract: 对地下水调查中37种必测组分检测过程的替代物进行筛选,应用D′Agostino法对替代物的测量结果进行正态性检验.利用正态分布函数"3σ"原则,定义了各替代物质量控制指标的有效区间.应用正态函数随机变量的数学期望和方差,计算得到各替代物有效区间内的正态函数分布概率均大于97%,替代物过程能力指数计算结果表明,二溴氟代甲烷、甲苯-d8、对溴氟苯、1,2-二氯苯-d4、氟苯等挥发性有机污染物分析过程选...
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