CAJ | 학술논문

给出了电感耦合等离子体质谱(ICP-MS)法测定烟草中铅含量的数学模型,根据试验过程确定了测量结果不确定度的6个来源,并对6个来源的不确定度进行了分析与计算.结果显示,在选定的烟草样品中铅的含量为2.55 mg/kg,当置信概率为0.95,包含因子为2时,扩展不确定度为0.37 mg/kg.
급출료전감우합등리자체질보(ICP-MS)법측정연초중연함량적수학모형,근거시험과정학정료측량결과불학정도적6개래원,병대6개래원적불학정도진행료분석여계산.결과현시,재선정적연초양품중연적함량위2.55 mg/kg,당치신개솔위0.95,포함인자위2시,확전불학정도위0.37 mg/kg.
Mathematical model of determination of Lead content in tobacco by ICP-MS was given in this article. The six sources of uncertainty were confirmed and calculated. The results show as follows: as the lead content of the tobacco sample is 2.55 mg/kg, probability level is 0.95 and coverage factor k=2. The expanded uncertainty of lead is 0.37 mg/kg.