Abstract：The errors caused by different computational strategies of method for Guide to the Expression of Uncertainty in Measurement (GUM method) may affect the evaluation results of measurement uncertainty by standard curve method.The determination of copper content in solution by inductively coupled plasma atomic emission spectrometry (ICP-AES) was selected as an example. The errors of measurement uncertainty evaluated by GUM method for standard curve method were explored. The evaluation results of Adaptive Monte Carlo Method (AMCM) based on R language were used as reference to compare and analyze the evaluation results of GUM method obtained by different-computational strategies. According to the comparison results of numerical tolerance method, the evaluation results of GUM method achieved by Strategies 2~5 were all unreliable. There was misapplication of GUM method. However, the GUM method (GUM-1), which took the root mean square of the uncertainty of different concentrations of standard solutions in the standard solution series to calculate the uncertainty component of the standard solution series as the calculation strategy, had the evaluation result of 0.044 mg/L,which was the closest to 0.043 mg/L of AMCM. Therefore, GUM-1 was deemed as the best estimation strategy in 5 kinds of GUM evaluations for measurement uncertainty by standard curve method, and it could be used as an alternative method under the condition without AMCM.
[1] 刘园园,杨健,赵希勇,等.GUM法和MCM法评定测量不确定度对比分析[J].计量学报,2018,39(1):135-139. LIU Yuanyuan,YANG Jian,ZHAO Xiyong,et al.Comparative analysis of uncertainty measurement evaluation with GUM and MCM[J].Acta Metrologica Sinica,2018,39(1):135-139. [2] 陈仁杰,黄婷婷,吕良勇,等.ICP-MS测定陶瓷片密封水嘴浸泡液中镉含量的不确定度分析[J].计量学报,2018,39(6):914-917. CHEN Renjie,HUANG Tingting,L Liangyong,et al.Evaluation of uncertainty in measurement of cadmium in immersion solution of ceramic cartridge faucets by ICP-MS[J].Acta Metrologica Sinica,2018,39(6):914-917. [3] 王海斌,张建宏,朱天一.MCM法和GUM法评定氨气检测仪示值误差不确定度的对比[J].计量分析化学,2021,30(3):85-89. WANG Haibin,ZHANG Jianhong,ZHU Tianyi.Comparation between MCM and GUM in measurement uncertainty evaluation of error of indication of ammonia gas detectors[J].Chemical Analysis and Meterage,2021,30(3):85-89. [4] 牛恒,牛娜.自适应蒙特卡洛法在测量不确定度评定中的应用[J].宁夏工程技术,2019,18(1):72-75. NIU Heng,NIU Na.Application of adaptive Monte-Carlo method in uncertainty measurement[J].Ningxia Engineering Technology,2019,18(1):72-75. [5] 王君,李钟玮,刘永强.火焰原子吸收光谱法测定工作场所空气中铬的不确定度评定[J].上海预防医学,2014,26(6):320-322. WANG Jun,LI Zhongwei,LIU Yongqiang.Evaluation of uncertainty for determination of chromium in the air of workplace by FAAS[J].Shanghai Journal of Preventive Medicine,2014,26(6):320-322. [6] 王明华.火焰原子吸收光谱法测定婴儿奶粉中锌含量的不确定度评定[J].化学工程师,2013(3):20-23. WANG Minghua.Uncertainty assessment of AAS determination for zinc content in baby milk powder[J].Chemical Engineer,2013(3):20-23. [7] 张荷丽.原子吸收光谱法测定婴幼儿奶粉中铁含量不确定度的评定[J].光谱实验室,2012,29(3):1501-1505. ZHANG Heli.Uncertainty evaluation of determination of iron in milk powder for infants by AAS[J].Chinese Journal of Spectroscopy Laboratory,2012,29(3):1501-1505. [8] 张孝军,程银宝,吴军,等.自适应蒙特卡洛法评定量块校准测量不确定度[J].电子测量技术,2020,43(20):84-88. ZHANG Xiaojun,CHENG Yinbao,WU Jun,et al.Measurement uncertainty evaluation of gauge calibration using adaptive Monte Carlo method[J].Electronic Measurement Technology,2020,43(20):84-88. [9] 何纯全,赵炳秋,万海军,等.基于自适应蒙特卡洛法的磁场辐射发射测量不确定度评定[J].电子测量技术,2019,42(1):31-34. HE Chunquan,ZHAO Bingqiu,WANG Haijun,et al.Magnetic field radiated emissions measurement uncertainty evaluation using adaptive Monte Carlo method[J].Electronic Measurement Technology,2019,42(1):31-34. [10] 李霞,戚宁武,张松,等.自适应蒙特卡洛法和GUM法在加油机测量不确定度评定中的比较研究[J].工业计量,2017,27(S2):70-73. LI Xia,QI Ningwu,ZHANG Song,et al.Comparative study of adaptive Monte Carlo method and GUM method in evaluation of measurement uncertainty of fuel dispenser[J].Industrial Metrology,2017,27(S2):70-73. [11] 刘攀,张毅,张健豪.单点校准线性测量系统不确定度的蒙特卡洛法评定模型构建与应用[J].冶金分析,2020,40(8):22-29. LIU Pan,ZHANG Yi,ZHANG Jianhao.Evaluation of the uncertainty for the single point calibration linear measurement system based on Monte Carlo method[J].Metallurgical Analysis,2020,40(8):22-29. [12] 陈妍.钼酸铵分光光度法测定水中总磷含量的不确定度评定[J].广东化工,2014,41(2):115-117. CHEN Yan.Evaluation of the uncertainty for the determination of the total phosphorus content in water by ammonium molybdate spectrophotometric method[J].Guangdong Chemical Industry,2014,41(2):115-117. [13] 黄春贺.原子吸收光谱法测定钼酸铵中钾的不确定度评定[J].硬质合金,2012,29(4):232-237. HUANG Chunhe.Evaluation on uncertainty of potassium content in ammonium molybdate measured by atomic absorption spectrometry[J].Cemented Carbide,2012,29(4):232-237. [14] 刘紫譞,蔡义珊,吴赞,等.火焰原子吸收光谱法测定婴儿配方奶粉中钾含量的不确定度评定[J].分析仪器,2018(6):92-95. LIU Zihuan,CAI Yishan,WU Zan,et al.Evaluation of uncertainty for determination of potassium in infant formula by FAAS[J].Analytical Instrumentation,2018(6):92-95.
