石墨炉原子吸收法测定海苔中铝的不确定度分析

摘要

To establish a graphite furnace atomic absorption spectrometry(GFAAS) method for the determination of aluminium in seasedge uncertainty analysis. A method DB13/T1105-2009, the establishment of a mathematical model of uncertainty, system analysis of all components of uncertainty. When the aluminium content of 72.95 mg/kg , the degree of uncertainty as 3.05 mg/kg (k=2). This analysis of the full analysis and identification of sources of uncertainty in the process, a more comprehensive assessment of the performance GFAAS measurement uncertainty of aluminium in seasedge.%建立石墨炉原子吸收法测定海苔中铝的不确定度的分析方法。本文以方法DB13/T1105-2009，建立不确定度的数学模型，系统分析计算不确定度各分量。当铝含量为72.95 mg/kg时，不确度为3.05 mg/kg（k=2）。本文充分分析和识别分析过程中的不确定来源，较为全面地评定了石墨炉原子吸收分光光度计测量海苔中铝的不确定度。