Polymers are commonly provided in pellet forms, which are very hard to mill.
For achieving it, it is necessary to dispose of a suitable press which allows heating and melting polymers.
The manipulation of such samples risks contamination.
In the present work, a series of standard in polymeric matrix in concentration range between 5.0 and 50.0 mg kg1 (R=0.9997) were prepared by milling virgin
polymer and mixing with ZrO2, following by fusion at 453 K.
The resulting samples were shown to be homogeneous.
Table 2 shows the resulting Zr contents determined in polyethylenes (PE) using the standards prepared in polymeric matrix.