The study of the stability of reference materials by isochronous measurements

被引:180
作者
Lamberty, A [1 ]
Schimmel, H [1 ]
Pauwels, J [1 ]
机构
[1] Commiss European Communities, Joint Res Ctr, Inst Reference Mat & Measurements, B-2440 Geel, Belgium
来源
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1998年 / 360卷 / 3-4期
关键词
Reference Material; Certify Reference Material; Reference Temperature; Stability Study; Stability Testing;
D O I
10.1007/s002160050711
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
An alternative method for stability testing of candidate certified reference materials (CRMs) utilizing "isochronous" measurements based on a storage design (storing samples at different temperatures for different time periods), which allows all measurements to be done at the same time, i.e. at the end of the study, is compared to "classical" designs of stability studies using reference time or reference temperature. The execution of stability studies using "isochronous" measurements only requires repeatability conditions, whereas classical designs require both repeatability and long term reproducibility conditions. Consequently, the new design allows the quality of results to be improved.
引用
收藏
页码:359 / 361
页数:3
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