-
Nano-Pellets as reference materials
A short summary about using nano-pellets as reference materials. The idea to press powders into pellets is not new. Until now it has been necessary to add a binding agent to the form stable pellets. This dilutes the sample and changes the sample-matrix. The innovation behind the nano-pellets is grinding the powders to a grain-size…
-
Reference materials for beginners
An insight into the considerations behind the use of a reference material. The thought behind the use of a reference material is simple. It is used as a benchmark in chemical analysis. Most analyses are rather comparative than absolute measurements. The analytical instruments show a relative signal which must be correlated to a known concentration…