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Identification and quantification of fluorinated polymers in consumer products by combustion ion chromatography and pyrolysis-gas chromatography-mass spectrometry
Environmental Science: Processes & Impacts ( IF 4.3 ) Pub Date : 2023-12-06 , DOI: 10.1039/d3em00438d Lisa Skedung 1 , Eleni Savvidou 2 , Steffen Schellenberger 3 , Anders Reimann 1 , Ian T Cousins 2 , Jonathan P Benskin 2
Environmental Science: Processes & Impacts ( IF 4.3 ) Pub Date : 2023-12-06 , DOI: 10.1039/d3em00438d Lisa Skedung 1 , Eleni Savvidou 2 , Steffen Schellenberger 3 , Anders Reimann 1 , Ian T Cousins 2 , Jonathan P Benskin 2
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Total fluorine was determined in 45 consumer product samples from the Swedish market which were either suspected or known to contain fluorinated polymers. Product categories included cookware (70–550 000 ppm F), textiles (10–1600 ppm F), electronics (20–2100 ppm F), and personal care products (10–630 000 ppm F). To confirm that the fluorine was organic in nature, and deduce structure, a qualitative pyrolysis-gas chromatography-mass spectrometry (pyr-GC/MS) method was validated using a suite of reference materials. When applied to samples with unknown PFAS content, the method was successful at identifying polytetrafluoroethylene (PTFE) in cookware, dental products, and electronics at concentrations as low as 0.1–0.2 wt%. It was also possible to distinguish between 3 different side-chain fluorinated polymers in textiles. Several products appeared to contain high levels of inorganic fluorine. This is one of the few studies to quantify fluorine in a wide range of consumer plastics and provides important data on the concentration of fluorine in materials which may be intended for recycling, along with insights into the application of pyr-GC/MS for structural elucidation of fluorinated polymers in consumer products.
中文翻译：
通过燃烧离子色谱法和热解-气相色谱-质谱法对消费品中的氟化聚合物进行鉴定和定量
对来自瑞典市场的 45 个消费品样品进行了总氟测定，这些样品怀疑或已知含有氟化聚合物。产品类别包括炊具 (70–550 000 ppm F)、纺织品 (10–1600 ppm F)、电子产品 (20–2100 ppm F) 和个人护理产品 (10–630 000 ppm F)。为了确认氟本质上是有机物并推断结构，使用一套参考材料对定性热解-气相色谱-质谱 (pyr-GC/MS) 方法进行了验证。当应用于未知 PFAS 含量的样品时，该方法成功地识别了炊具、牙科产品和电子产品中浓度低至 0.1-0.2 wt% 的聚四氟乙烯 (PTFE)。还可以区分纺织品中 3 种不同的侧链氟化聚合物。一些产品似乎含有高含量的无机氟。这是量化各种消费塑料中氟的少数研究之一，并提供了有关可用于回收的材料中氟浓度的重要数据，以及对 Pyr-GC/MS 在结构阐明中的应用的见解消费品中的氟化聚合物。
更新日期：2023-12-06
中文翻译：
通过燃烧离子色谱法和热解-气相色谱-质谱法对消费品中的氟化聚合物进行鉴定和定量
对来自瑞典市场的 45 个消费品样品进行了总氟测定，这些样品怀疑或已知含有氟化聚合物。产品类别包括炊具 (70–550 000 ppm F)、纺织品 (10–1600 ppm F)、电子产品 (20–2100 ppm F) 和个人护理产品 (10–630 000 ppm F)。为了确认氟本质上是有机物并推断结构，使用一套参考材料对定性热解-气相色谱-质谱 (pyr-GC/MS) 方法进行了验证。当应用于未知 PFAS 含量的样品时，该方法成功地识别了炊具、牙科产品和电子产品中浓度低至 0.1-0.2 wt% 的聚四氟乙烯 (PTFE)。还可以区分纺织品中 3 种不同的侧链氟化聚合物。一些产品似乎含有高含量的无机氟。这是量化各种消费塑料中氟的少数研究之一，并提供了有关可用于回收的材料中氟浓度的重要数据，以及对 Pyr-GC/MS 在结构阐明中的应用的见解消费品中的氟化聚合物。
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