Perfluoroalkyl substances (PFASs) are used in a variety of industrial and household applications. Unfortunately, they are released to the environment including aquatic ecosystems and undergo accumulation processes (e.g., in sediment). Due to these aspects but also toxicity, PFASs can pose a threat to the environment and humans, so their determination (mainly with liquid chromatography) in environmental samples is very important. In this study, a new analytical procedure is shown which allows the determination of 17 PFASs (13 carboxylic and 4 sulfonic acids) in sediment using ultrahigh-performance liquid chromatography and tandem mass spectrometry detection (UHPLC–MS/MS). Extracts were cleaned up by automated solid phase extraction using a commercially available weakly basic secondary and tertiary ammonium polymeric anion exchange sorbent. The method precision range was 0.29–9.8% for all PFASs. Recoveries of extraction for automated system were acceptable (for all PFASs 60–105%) and better than manual extraction. The method detection limit range was from 0.090 to 3.7 pg g−1 dry weight (d.w.) of sediment. The proposed method is rapid, sensitive and suitable for determination of up to 17 PFASs in sediment. These are the first studies in the area of the mouth of the Vistula River. Generally, in most collected sediments samples no analytes were detected above the method detection limits.

中文翻译：

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使用自动固相萃取和超高效液相色谱-串联质谱法测定沉积物中的 17 种全氟烷基物质

全氟烷基物质 (PFAS) 用于各种工业和家庭应用。不幸的是，它们被释放到包括水生生态系统在内的环境中并经历积累过程（例如，在沉积物中）。由于这些方面以及毒性，PFAS 会对环境和人类构成威胁，因此它们在环境样品中的测定（主要使用液相色谱法）非常重要。在本研究中，展示了一种新的分析程序，该程序允许使用超高效液相色谱和串联质谱检测 (UHPLC-MS/MS) 测定沉积物中的 17 种 PFAS（13 种羧酸和 4 种磺酸）。使用市售的弱碱性仲铵和叔铵聚合物阴离子交换吸附剂，通过自动固相萃取对萃取物进行净化。所有 PFAS 的方法精密度范围为 0.29–9.8%。自动化系统的提取回收率是可以接受的（所有 PFAS 为 60-105%）并且优于手动提取。方法检测限范围为 0.090 至 3.7 pg g-1 沉积物干重 (dw)。所提出的方法快速、灵敏，适用于测定沉积物中多达 17 种 PFAS。这些是维斯瓦河河口地区的首批研究。通常，在大多数收集的沉积物样品中，没有检测到高于方法检测限的分析物。灵敏，适用于测定沉积物中多达 17 种 PFAS。这些是维斯瓦河河口地区的首批研究。通常，在大多数收集的沉积物样品中，没有检测到高于方法检测限的分析物。灵敏，适用于测定沉积物中多达 17 种 PFAS。这些是维斯瓦河河口地区的首批研究。通常，在大多数收集的沉积物样品中，没有检测到高于方法检测限的分析物。