摘要
电感耦合等离子体发射光谱法(ICP-OES)测定土壤中钪含量的不确定度主要来源于样品称量、样品消解的定容体积和测定样品消解液中钪的浓度,通过建立数学模型,对这些分量进行了量化计算。按JJF l059-1999《测最不确定度评定与表示》的规定进行合成,最终给出扩展不确定度。结果表明影响钪元素含量测量不确定度的主要因素是测量样品消解液中钪的浓度引起的。
Based on the systematic analysis of the uncertainty in measurement of scandium in soil determined by inductively coupled plasma optic emission spectrometry（ICP-OES）,the sources of the uncertainty were comprised of sample weighing,constant volume,and the determination of scandium concentration in soil decomposed solution.The uncertainty in measurement was synthesized according to JJFl059-1999（Evaluation and Expression of Uncertainty in Measurement）,and the final expanded uncertainty was given by mathematics mode.The major source of uncertainty was the determination of scandium concentration in soil decomposed solution by ICP-OES.
出处
《光谱实验室》
CAS
2013年第4期2031-2034,共4页
Chinese Journal of Spectroscopy Laboratory
