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| Content Provider | Springer Nature Link |
|---|---|
| Author | Kipphardt, Heinrich Matschat, Ralf Vogl, Jochen Gusarova, Tamara Czerwensky, Michael Heinrich, Hans Joachim Hioki, Akiharu Kopelko, Leonid A. Methven, Brad Miura, Tsutomu Petersen, Ole Riebe, Gundel Sturgeon, Ralph Turk, Gregory C. Yu, Lee L. |
| Copyright Year | 2009 |
| Abstract | Within the National Metrology Institutes (NMIs) and designated laboratories, an interlaboratory comparison, CCQM-P107, was conducted to verify the degree of international comparability concerning the results of purity analysis. The mass fractions of Ag, Bi, Cd, Cr, Ni, Tl at the lower mg/kg-level in a high purity zinc material were determined, but the real measurand in metrological sense was the sum of the six mass fractions. Homogeneity was investigated by glow discharge mass spectrometry, reference values were obtained using isotope dilution mass spectrometry. Six NMIs participated, contributing eight independent data sets. The agreement amongst the results of the participants, their median and the agreement with the reference values were usually excellent and in almost all cases below the target uncertainty of 30% relative. In this manner, the accuracy of results and the comparability between the participants was demonstrated to be established. |
| Starting Page | 29 |
| Ending Page | 37 |
| Page Count | 9 |
| File Format | |
| ISSN | 09491775 |
| Journal | Accreditation and Quality Assurance |
| Volume Number | 15 |
| Issue Number | 1 |
| e-ISSN | 14320517 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2009-07-09 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Interlaboratory comparison Purity analysis High purity metals CCQM-P107 Zinc Marketing Ecotoxicology Biochemistry Analytical Chemistry Commercial Law Food Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Instrumentation Chemical Engineering Safety, Risk, Reliability and Quality |
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