电感耦合等离子体原子发射光谱法测定原料油中Cu含量的不确定度评定

Advances in Fine Petrochemicals(2019)

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Abstract
介绍了应用电感耦合等离子体原子发射光谱(ICP-AES)法测定原油中Cu含量不确定度的评定方法.建立了相应的数学模型,对实验中引入的不确定度来源进行了分析,评定了样品称量、试样溶液制备、标准溶液配制、标准曲线拟合、样品重复性分析和仪器自身稳定性等不确定因素,计算了合成不确定度和扩展不确定度,检测结果的扩展不确定度为0.175 3 μg/g.
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