Reference materials (RMs) and external quality assessment (EQA) are cornerstones in clinical chemistry, underpinning the harmonisation, comparability, and accuracy of laboratory measurements. RMs, ...
The IAEA Environmental Laboratories produce certified reference materials for the measurement of radionuclides, trace elements and organic contaminants. These materials can be used for quality ...
A solid sample material has to always be sufficiently prepared by homogenization and size reduction before exposure to physical or chemical analysis. Care should be taken that the analysis sample ...
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