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| The Application of Double-error Regression in Uncertainty Evaluation Method for Sulfate Determination by Ion Chromatography |
| YU Jian-guo,ZHOU Xiao-hong,WANG Hua,DENG Zhen-ping |
| Institute of Karst Geology of CAGS, Karst Dynanics Laboratory of MLR, Guilin, Guangxi 541004, China |
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Abstract An uncertainty evaluation method for sulfate determination in karst underground water by ion chromatography detection technology is proposed.Using continuous propagation model of uncertainty,the sulfate measurement uncertainty is evaluated.The main sources of measurement uncertainty come from sub-uncertainties of calibration solutions,calibration curve fitting and measurements process.The double-error regression is used in the process of standard curve fitting.Based on the quantitative analysis of each uncertainty component during experimental results,the standard uncertainty model for sulfate determination results is obtained.
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［1］席临平.水中硫酸盐测定方法研究［J］.西安工程学院学报,2001,23(2):75－76.
［2］宋金如,刘淑娟,朱霞萍.测定水中硫酸根方法的概述［J］.华东地质学院学报,2002,25(2):154－158.
［3］王斗文,牛兴荣,张明霞,等.分析测试实验室内部质量控制中移动极差合并统计监控技术下的不确定度动态测量评估［J］.分析测试学报,2004,23(5):32－37.
［4］DZ/T 0064.51－93,地下水质检验方法 离子色谱法测定硫酸根［S］.1993.
［5］朱家平,王亚平,刘建坤,等.不确定度连续传递模型及其在化学测量中的应用［J］.地质通报,2009,28(10):1841－1845.
［6］张蓉,张华珺,王志斌.微波消解—石墨炉原子吸收光谱法测定保健食品中痕量铅的不确定度评定［J］.计量学报,2010,31(4):369－373.
［7］中国实验室国家认可委员会．化学分析中不确定度的评估指南［M］.北京:中国计量出版社,2002.
［8］JJG 196－2006,中华人民共和国国家计量检定规程—常用玻璃量器［S］.2006.
［9］代阿芳,鲁立强,潘河,等.电感耦合等离子体质谱法测定地下水中锑的不确定度评定［J］.岩矿测试,2010,29(4):431－437.
［10］朱家平,刘建坤,王亚平,等.化学测量中不确定度的计算方法-不确定度连续传递模型计算示例［J］.地质通报,2010,29(11):1721－1725.
［11］路远发,朱家平,汪群英.基于不确定度连续传递模型的标准曲线双误差拟合程序［J］.岩矿测试,2011,30(2):238－243. |
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2013, Vol. 34 
