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《JOURNAL OF ANALYTICAL SCIENCE》 2000-01
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Parametric and Bootstrap Estimations of Confidence Intervals for Analyte Concentrations of Composite Samples

GAO Zhi, HE Xi wen , LI Yi jun (Department of Chemistry, Nankai University, Tianjin, 300071, P.R.C.)  
Based on the initial analytical results of pig irons, Monte Carlo technique was used for the simulation of composite sampling. The confidence intervals of the concentration of Si, Mn, C, S, P in composite samples were studied with parametric and bootstrap methods, and the estimated results were compared. It shows that if the parent distribution complies with the Gaussian (or t distribution) discipline or if the composite sample contains a large number of increments, the estimated confidence intervals for two methods are in accordance with each other. However, if the parent distribution deviates greatly from the Gaussian distribution (or t distribution) and the composite sample contains a small number of increments, bootstrap method gives more reasonable confidence intervals than parametric method.
【Fund】: 国家自然科学基金! (编号 :2 95 75 2 0 0 )
【CateGory Index】: O651
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 He Xiwen , Guo Wei (Department of Chemistry, Nankai University, Tianjin 300071);The Recent Development of Chemometrics-Sampling[J];Chinese Journal of Analytieal Chemistry;1995-12
【Co-citations】
Chinese Journal Full-text Database 6 Hits
1 Gao Zhi, He Xiwen , Zhang Guizhu (Department of Chemistry, Nankai University, Tiarjin 300071)Li Yuhuan, Wu Xiaoyu ( Tianjin Geological Academy, Tiarjin 300181);Micro-homogeneity of Particulate Material and Its Effect on the Sampling Errors[J];Chinese Journal of Analytical Chemistry;1999-04
2 Gao Zhi,Li Yijun, He Xiwen,Zhu Shoutian (Department of Chemistry,Nankai University,Tianjin 300071);Relationship Between the Precision of Estimated Sampling Variances and the Number of Samples[J];Chinese Journal of Analytieal Chemistry;2001-02
3 Gao Zhi, He Xiwen *, Li Yijun (Department of Chemistry, Nankai University, Tianjin, 300071, PRC);Investigation on the Relationship between Composite Sampling Error and the Number of Increments for Chemical Analysis of Stratified Materials with Monte Carlo Simulation Technique[J];JOURNAL OF ANALYTICAL SCIENCE;1999-05
4 GAO Zhi;HE Xi-Wen; LI Yi-Jun(Department of Chemistry, Nankai University, Tianjin 300071, China);Applying Monte Carlo Simulation Technique to the Study of Composite Sampling for Chemical Analysis of Stratified Materials[J];CHEMICAL RESEARCH IN CHINESE UNIVERSITIES;1999-09
5 DONG De ming, ZHU Xian lei, FANG Chun sheng, QIU Li min (Department of Environmental Science and Engineering, Jilin University, Changchun, 130023);Sampling and Analytical Quality Control Scheme (SAX) in Soil Sample Analysis and an Applied Programme for Statistical Computation[J];ACTA SCIENTIARIUM NATURALIUM UNIVERSITATIS JILINENSIS;2000-01
6 DU Deng-xue,ZHOU Lei,FAN Yu-qing (Department of Chemical Engineering,Shandong Institute of Light Industry,Jinan 250100,China);Improvement of NIR technology and its application to analytical chemistry[J];JOURNAL OF SHANDONG INSTITUTE OF LIGHT INDUSTRY(NATURAL SCIENCE EDITION);2002-01
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1 Wu Shuisheng and Lu jianquan (National University of Defense Technology);Sampling and Quality Control in Analytical Chemistry[J];Analytical Laboratory;1987-01
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