采用电感耦合等离子体-原子发射光谱法(ICP-AES)测定了玩具样品中的可迁移重金属含量,并以钡元素为例对所得检测结果进行了不确定度评定,分析了测试过程中的不确定度来源,计算了测定结果的合成不确定度和扩展不确定度,为正确评价和使用检测结果提供了理论依据。 The content of transportable heavy metals in toy samples was measured by inductively coupled plasma-atomic emission spectrometry (ICP-AES), and the uncertainty of the test results was evaluated by using barium as an example. The source of the degree of certainty, the synthetic uncertainty of the measurement result and the expanded uncertainty are calculated, which provides a theoretical basis for the correct evaluation and the use of the test result.