Determination of the total purity of a high-purity silver material to be used as a primary standard for element determination

被引：0
作者：
Tao Zhou
Silke Richter
Ralf Matschat
Heinrich Kipphardt
机构：
[1] National Institute of Metrology,
[2] BAM Federal Institute for Materials Research and Testing,undefined
来源：
Accreditation and Quality Assurance | 2013年 / 18卷
关键词：
Silver; Purity; Total purity; Primary standard; Element determination;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A candidate material for the use as primary standard for silver determination was characterized with respect to total purity. Except the radioactive elements and He, all possible impurities were considered. Based on glow discharge mass spectrometry, inductively coupled plasma-mass spectrometry and carrier gas hot extraction measurements, the demonstrated total purity and its standard uncertainty is w(Ag) = (99.999 52 ± 0.000 11) %. The purity value and its uncertainty is dominated by the contributions from the measurements of the nonmetallic impurities, namely S, N, C and O.
引用
收藏
页码：341 / 349
页数：8
相关论文
共 23 条
[1]  
Kipphardt H(2006)Traceability system for chemical analysis Accred Qual Assur 10 633-639
[2]  
Matschat R(2012)Calibration of isotope amount ratios by analysis of isotope mixtures Anal Bioanal Chem 403 2071-2076
[3]  
Rienitz O(2011)Gravimetric methods for the preparation of standard gas mixtures Metrologia 48 R1-R9
[4]  
Schiel D(1962)Report of the International Commission on Atomic Weights (1961) J Am Chem Soc 84 4175-4197
[5]  
Gernand W(1995)Review of the potential of titrimetry as a primary method Metrologia 12 11-12
[6]  
Oeter D(2006)Application of glow discharge mass spectrometry to the multi element ultra-trace determination in ultrahigh purity copper and iron: a way of calibration to achieve quantification and traceability Anal Bioanal Chem 386 125-141
[7]  
Meija J(2010)Comparison of different calibration strategies for the analysis of zinc and other pure metals by using the GD-MS instruments VG 9000 and Element GD J Anal Spectrom 25 314-321
[8]  
Milton MJT(undefined)undefined undefined undefined undefined-undefined
[9]  
Vargha GM(undefined)undefined undefined undefined undefined-undefined
[10]  
Brown AS(undefined)undefined undefined undefined undefined-undefined
123