Abstract：
Due to their widespread production and known environmental contamination, the need for the detection and remediation of per- and polyfluoroalkyl substances (PFAS) has grown quickly. While destructive thermal treatment of PFAS at low temperatures (e.g., 200-500 °C) is of interest due to lower energy and infrastructure requirements, the range of possible degradation products remains underexplored. To better understand the low temperature decomposition of PFAS species, we have coupled gas-phase infrared spectroscopy with a multivariate curve resolution (MCR) analysis and a database of high-resolution PFAS infrared reference spectra to characterize and quantify a complex mixture resulting from potassium perfluorooctanesulfonate (PFOS-K) decomposition. Beginning at 375 °C, nine prevalent decomposition products (namely smaller perfluorocarbon species) are identified and quantified.
摘要：
由于其广泛的生产和已知的环境污染，检测和修复全氟烷基和多氟烷基物质（PFAS）的需求迅速增长。而在低温下对PFAS进行破坏性热处理(例如，200至500oC）由于较低的能源和基础设施要求而受到关注，可能的降解产物范围仍未充分开发。为了更好地了解PFAS物种的低温分解，我们将气相红外光谱与多元曲线分辨率（MCR）分析和高分辨率PFAS红外参考光谱数据库相结合，以表征和量化全氟辛烷磺酸钾（PFOS-K）分解产生的复杂混合物。鉴定并定量了九种普遍的分解产物(即较小的全氟化碳物质)。
