Solvent-Free Preparation for MALDI-MS Analysis of Virgin and Recycled Polyethylene Terephthalate (PET)

User Benefits

- Simple and quick sample preparation - Solvent-free preparation for the analysis of poorly soluble polymers - Avoidance of hazardous solvents

Introduction

Polyethylene terephthalate (PET) is a widely used polymer found in everyday applications, most notably in single-use beverage bottles. Since 2021, taxes have been imposed on non-recycled PET, increasing the demand for efficient methods to differentiate between virgin and recycled PET. This has made rapid and straightforward analytical techniques for PET more relevant than ever. However, PET presents several analytical challenges due to its poor solubility, complicating analysis using techniques like MALDI (Matrix-Assisted Laser Desorption/Ionization). PET can be dissolved in solvents such as 1,1,1,3,3,3-hexafluoropropan-2-ol, but this solvent belongs to the highly controversial PFAS (per- and polyfluoroalkyl substances) class, known for its environmental persistence and potential health risks. The development of solvent-free analytical methods for PET is highly beneficial, as it eliminates the need for environmentally harmful solvents and aligns with growing sustainability standards.

December 18, 2024 GMT