A promising concept for sampling contaminants of emerging concern (CECs) using a home-made Simple Teabag Equilibrium Passive Sampler (STEPS) containing hydrophilic divinylbenzene (h–DVB) sorbent is presented and evaluated for application in estuarine systems. The uptake of a multi-class mixture of CECs with a broad polarity range (Log P ranging from −0.1 to 9.9) was investigated in static exposure batch experiments. Sampling rates (R_s) and equilibrium partitioning coefficients (K_sw) were determined for up to 74 CECs. Fast uptake (R_s = 0.3–12 L d⁻¹) was noticed and the STEPS attained equilibrium partitioning after 1 to 2 weeks of exposure, with Log K_sw ranging from 4.1 to 6.5 L kg⁻¹. Field application of this novel h–DVB containing STEPS, followed by ultra-high performance liquid chromatography coupled to high-resolution Orbitrap mass spectrometry, revealed the presence of up to 40 steroidal hormones, (alkyl)phenols, phthalates, pharmaceuticals, personal care products, and pesticides in the Belgian Part of the North Sea. The measured trace concentrations (from 0.003 ng L⁻¹ to 1.9 μg L⁻¹) and good precision (average RSD < 30%, n = 3) demonstrate the STEPS as fit-for-purpose for micropollutant analysis in the marine environment.

提出并提出了使用含亲水性二乙烯基苯（h–DVB）吸附剂的自制简单茶袋平衡被动式采样器（STEPS）采样新兴关注污染物（CEC）的有前途的概念，并对其在河口系统中的应用进行了评估。在静态暴露批量实验中研究了极性范围广（Log P范围从-0.1到9.9）的多类CEC混合物的吸收。确定了多达74个CEC的采样率（R _s）和平衡分配系数（K _sw）。注意到快速摄取（R _s  = 0.3–12 L d ^-1），并且在暴露1至2周后，STEP达到了平衡分配，Log K_sw范围从4.1到6.5 L kg ^-1。含有STEPS的新型h–DVB的现场应用，再加上超高效液相色谱与高分辨率Orbitrap质谱联用，发现存在多达40种甾体激素，（烷基）酚，邻苯二甲酸酯，药物，个人护理产品和北海比利时地区的农药。测得的痕量浓度（0.003 ng L ^-1至1.9μgL ^-1）和良好的精密度（平均RSD <30％， n  = 3）证明了该步骤非常适合海洋环境中的微污染物分析。