Evaluation of Pure PFAS Decrease in Controlled Settings

IF 4.6 Q1 CHEMISTRY, ANALYTICAL
Marco Mancini, Valentina Gioia, Federica Simonetti, Alessandro Frugis and Stefano Cinti*, 
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引用次数: 0

Abstract

Since 1940, poly- or perfluorinated alkyl substances (PFAS) have been largely used in many applications, including paints, fire foaming, household items, product packaging, and fabrics. Because of their extremely high persistency, they have been defined as “forever chemicals”. Although the EU is taking action to reduce their use, their widespread occurrence in environmental matrices and their harmful effects on human health require the use of highly performing analytical methods for efficient monitoring. Furthermore, novel PFAS are constantly revealed by both EU and National environmental agencies. The objective of this work is to investigate the cause of the signal decrease during the analysis of a standard PFAS mixture in water-based matrices, by proposing an efficient technical procedure for laboratory specialists. The analyses were carried out on a mixture of 30 PFAS, including both regulated and unknown substances (which are expected to be introduced in the guidelines), characterized by different chemical features, using LC-vials of two different materials, namely, glass and polypropylene, and dissolved in two solvents, namely, water and water–methanol. The temperature of analysis and the concentration of PFAS were also considered through LC-MS analyses at different times, in the 0–15 h range. Depending on the chemical structure and length of the PFAS, sampling and treatment procedures may be adopted to tackle the decrease and the release from the containers, reducing the risk of underestimating PFAS also in real water matrices.

Abstract Image

Abstract Image

控制设置中纯PFAS降低的评估
自 1940 年以来,多氟烷基或全氟烷基物质 (PFAS) 已广泛应用于涂料、防火发泡、家居用品、产品包装和织物等诸多领域。由于它们具有极高的持久性,因此被定义为 "永远的化学品"。尽管欧盟正在采取行动减少它们的使用,但它们在环境基质中的广泛存在及其对人类健康的有害影响要求使用高性能的分析方法进行有效监测。此外,欧盟和各国的环保机构也不断发现新型 PFAS。这项工作的目的是通过为实验室专家提出一种有效的技术程序,研究在分析水基基质中标准全氟辛烷磺酸混合物时信号下降的原因。分析对象是 30 种 PFAS 混合物,包括受管制物质和未知物质(预计将在指南中引入),它们具有不同的化学特征,使用两种不同材料(玻璃和聚丙烯)的液相色谱仪,溶解在两种溶剂(水和水甲醇)中。分析温度和全氟辛烷磺酸的浓度也通过 0-15 小时范围内不同时间的 LC-MS 分析加以考虑。根据全氟辛烷磺酸的化学结构和长度,可采用采样和处理程序来解决容器中全氟辛烷磺酸的减少和释放问题,从而降低低估实际水基质中全氟辛烷磺酸的风险。
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来源期刊
ACS Measurement Science Au
ACS Measurement Science Au 化学计量学-
CiteScore
5.20
自引率
0.00%
发文量
0
期刊介绍: ACS Measurement Science Au is an open access journal that publishes experimental computational or theoretical research in all areas of chemical measurement science. Short letters comprehensive articles reviews and perspectives are welcome on topics that report on any phase of analytical operations including sampling measurement and data analysis. This includes:Chemical Reactions and SelectivityChemometrics and Data ProcessingElectrochemistryElemental and Molecular CharacterizationImagingInstrumentationMass SpectrometryMicroscale and Nanoscale systemsOmics (Genomics Proteomics Metabonomics Metabolomics and Bioinformatics)Sensors and Sensing (Biosensors Chemical Sensors Gas Sensors Intracellular Sensors Single-Molecule Sensors Cell Chips Arrays Microfluidic Devices)SeparationsSpectroscopySurface analysisPapers dealing with established methods need to offer a significantly improved original application of the method.
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