| Autor: |
Shu-ichi Yamada, Yoichi Ishibashi, Hiroyuki Igaki, Makoto Shimura, Kazutoshi Kakita, Satoshi Tsuruta, Akihiro Ono, Mamoru Sakata, Shozo Asada |
| Rok vydání: |
2005 |
| Předmět: |
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| Zdroj: |
BUNSEKI KAGAKU. 54:235-242 |
| ISSN: |
0525-1931 |
| DOI: |
10.2116/bunsekikagaku.54.235 |
| Popis: |
The Japan Society for Analytical Chemistry carried out a third proficiency test for the determination of dioxins (polychlorodibenzo-p -dioxins, polychlorodibenzofurans and coplanar polychlorobiphenyls) in marine sediment. Proficiency testing of analytical laboratories is based on ISO/IEC Guide 43-1, “Proficiency testing by interlaboratory comparisons”. This testing was carried out from May ’02 to August ’02, with the participation of 104 laboratories. The test results were: 37.05 pg-TEQ/g of total Dioxin concentration on average; 7% in robust coefficient of variation. A total of 9 labs have been estimated to be unsatisfactory due to their large z score in the robust method, over 3 in absolute value. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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