Polyethylene terephthalate (PET) and recycled PET (rPET) materials are known for their durability and versatility and are accordingly analyzed for many reasons, for example to discover if the material has been previously recycled, and if so, how many times, to confirm its Molecular Weight, and to discover its purity, for example regarding presence of heavy metals.
Solvent extraction is one of the analytical methods commonly used to determine various compounds present on a known substrate matrix specifically; the present application has been studied to determine glue and organic substances in weight from rPET flakes.
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