Development and applications of diffusive gradients in thin films for monitoring pharmaceuticals in surface waters

文献类型： 外文期刊

第一作者： Cao, Hongmei

作者： Cao, Hongmei;Bu, Qingwei;Li, Qingshan;Gao, Xiaohong;Wang, Xiaoxiao;Xie, Huaijun;Gong, Wenwen;Yang, Lei;Tang, Jianfeng

作者机构：

关键词： Pharmaceuticals; Diffusive gradients in thin films (DGT); COVID-19; Antibiotic; Antiviral drugs

期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：9.988； 五年影响因子：10.366 ）

ISSN： 0269-7491

年卷期： 2022 年 311 卷

页码：

收录情况： SCI

摘要： Pharmaceutical contaminants in surface water have raised significant concerns because of their potential ecological risks. In particular, coronavirus disease 2019 (COVID-19)-related pharmaceuticals can be released to surface water and reduce environmental water quality. Therefore, reliable and robust sampling tools are required for monitoring pharmaceuticals. In this study, passive sampling devices of diffusive gradients in thin films (DGTs) were developed for sampling 35 pharmaceuticals in surface waters. The results demonstrated that hydro-philic-lipophilic balance (HLB) was more suitable for DGT-based devices compared with XAD18 and XDA1 resins. For most pharmaceuticals, the performance of the HLB-DGT devices were independent of pH (5.0-9.0), ionic strength (0.001-0.5 M), and flow velocity (0-400 rpm). The HLB-DGT devices exhibited linear pharmaceutical accumulation for 7 days, and time-weighted average concentrations provided by the HLB-DGT were comparable to those measured by conventional grab sampling. Compared to previous studies, we extended DGT monitoring to include three antiviral drugs used for COVID-19 treatment, which may inspire further exploration on identifying the effects of COVID-19 on ecological and human health.

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