An application of combining results from multiple methods - statistical evaluation of uncertainty for NIST SRM 1508a

被引：3

作者：

Hornikova, A

Zhang, NF

Welch, MJ

Tai, S

机构：

[1] Natl Inst Stand & Technol, Stat Engn Div, ITL, Gaithersburg, MD 20899 USA

[2] ACSL Natl Inst Stand & Technol, Div Analyt Chem, Gaithersburg, MD 20899 USA

来源：

METROLOGIA | 2006年 / 43卷 / 03期

关键词：

D O I：

10.1088/0026-1394/43/3/003

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

NIST standard reference materials (SRMs) are certified reference materials that are developed at NIST and provided to laboratories (industry, government and academia) for assessment and improvement of measurement quality. This paper details the statistical analysis related to the recertification of SRM 1508a, benzoylecgonine (cocaine metabolite) in freeze-dried urine, to incorporate new data. The recertification is based on combining measurement results from different measurement methods and time periods. Several different statistical models and corresponding estimators were considered for the certified value, its standard uncertainty and its expanded uncertainty.

引用

页码：205 / 212

页数：8

共 10 条

[1]

BERGER J. O., 2013, Statistical Decision Theory and Bayesian Analysis, DOI [10.1007/978-1-4757-4286-2, DOI 10.1007/978-1-4757-4286-2]

[2]

CROARKIN CM, 2003, NIST HDB, V151

[3] COMBINING UNBIASED ESTIMATORS [J].