However, interestingly, for the analytes with quantifiable concentrations of HMs, the levels showed an increasing trend in the following order: vPET granules > rPET granules > rPET flakes > 50:50 vPET/rPET preforms > 100% rPET preforms.
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Advancing Analytical Techniques in PET and rPET: Development of an ICP-MS Method for the Analysis of Trace Metals and Rare Earth Elements.
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