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Equilibrium passive sampling: A novel approach to determine internal tissue concentrations of hydrophobic organic compounds in biota

生物群 环境化学 被动取样 污染物 污染 环境科学 化学 持久性有机污染物 聚二甲基硅氧烷 采样(信号处理) 污染 固相微萃取 质谱法 色谱法 气相色谱-质谱法 生态学 滤波器(信号处理) 校准 有机化学 统计 数学 生物 计算机科学 计算机视觉
作者
Anne Kreutzer,Susann-Cathrin Schacht,Gesine Witt
出处
期刊:Science of The Total Environment [Elsevier BV]
卷期号:824: 153764-153764 被引量:3
标识
DOI:10.1016/j.scitotenv.2022.153764
摘要

Equilibrium passive sampling has been applied in numerous abiotic environmental matrices. This approach was extended to biological material. In this work, a passive equilibrium sampling method for the measurement of HOCs in biota was developed as an innovative alternative because classical exhaustive extraction techniques are time-consuming and error-prone. The newly developed method is based on the well-proven SPME fiber method for sediment. Polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) were used as model lipophilic organic pollutants. Partition coefficients of PAHs and PCBs between the lugworm tissue and the PDMS sampling phase were determined. Polydimethylsiloxane (PDMS) coated glass fibers were directly inserted in homogenized lugworm tissue and glass fibers were analyzed using gas chromatography coupled to mass spectrometry. The method application on lugworms from tidal sand flats near Wilhelmshaven showed that the mean body residue values of PCBs (4 μg g-1) and PAHs (256 μg g-1) were about five times higher for PCBs and more than 22 times higher for PAHs compared to literature data for the North Sea area. This high level of contamination might be a consequence of the oil processing refinery located in direct proximity to the sampling site. This novel approach of applying the SPME method to biota will make biological monitoring more effective and holistic, because seasonally and area-wide changes in all environmental compartments can be recorded quickly.
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