bootstrap模拟取样法对塑料食品包装溶出物暴露浓度估计

Exposure Concentration Assessment of Plastic Food Package Residues by Bootstrap Simulation Sampling

研究了塑料食品包装容器在介质水、乙酸、乙醇、正己烷的溶出物数据的分布特征,依据数据的形态分布特征,获得稳健的溶出物暴露值估计及标准偏差,证明以bootstrap法模拟取样样本分布的均值与标准偏差作为有限样本溶出物暴露值是可靠的。

Data distribution characteristics of residues of plastic food package under different immersed conditions, water, acetic acid, ethanol, and n-hexane separately, were investigated. Based on the results of multimodality analysis, different data description methods were applied to produce a robust exposure assessment and its confidence interval. It was concluded that it is reliable to use the average value and standard deviation of bootstrap simulation method as the assessment of residues exposure of limited samples.