极性有机化学综合采样器所用膜过滤器的渗透特性和吸附剂的吸附特性的表征。

IF 3.6 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Environmental Toxicology and Chemistry Pub Date : 2024-07-26 DOI:10.1002/etc.5957

Miyu Moriya, Kazushi Noro, Aika Nagaosa, Arisa Banno, Junko Ono, Takashi Amagai, Yoshinori Yabuki

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引用次数: 0

摘要

极地有机化学综合采样器（POCIS）是测量水生环境中亲水性化合物时间加权平均浓度的理想设备。然而，极性有机化学综合采样器吸收化合物的机理仍不清楚。我们研究了聚醚砜和聚四氟乙烯膜过滤器的渗透动力学，以及 Oasis HLB（沃特斯）、Envi-Carb（Supelco）和 Oasis WAX（沃特斯）吸附剂的吸附动力学。19 种目标化合物的辛醇-水分配系数（KOW）对数值从 -0.55 到 6.0 不等。总体质量转移系数与 KOW 呈负相关，表明疏水性化合物与膜之间的相互作用抑制了渗透。吸附速率系数与 KOW 无关，取决于所用吸附剂的类型。这些结果表明，POCIS 对高亲水性化合物的吸收是由膜和吸附剂动力学共同决定的；然而，膜动力学对疏水性化合物的吸收起主导作用。环境毒物化学 2024;00:1-7。© 2024 SETAC.

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Characterization of The Permeation Properties of Membrane Filters and Sorption Properties of Sorbents Used for Polar Organic Chemical Integrative Samplers

Polar organic chemical integrative samplers (POCIS) are promising devices for measuring the time-weighted average concentrations of hydrophilic compounds in aquatic environments. However, the mechanisms underlying compound uptake by POCIS remain unclear. We investigated the permeation kinetics of polyethersulfone and polytetrafluoroethylene membrane filters, and the sorption kinetics of Oasis HLB (Waters), Envi-Carb (Supelco), and Oasis WAX (Waters) sorbents. The log octanol−water partition coefficient (K_OW) values of the 19 targeted compounds ranged from −0.55 to 6.0. The overall mass-transfer coefficients were negatively correlated with K_OW, indicating that interactions between hydrophobic compounds and the membrane inhibit permeation. The sorption rate coefficient showed no correlation with K_OW and depended on the type of sorbent used. These results imply that the uptake of highly hydrophilic compounds by POCIS is determined by both the membrane and the sorbent kinetics; however, membrane kinetics dominate the uptake of hydrophobic compounds. Environ Toxicol Chem 2024;43:2115–2121. © 2024 SETAC

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来源期刊

Environmental Toxicology and Chemistry 环境科学-毒理学

CiteScore

7.40

自引率

9.80%

发文量

265

审稿时长

3.4 months

期刊介绍： The Society of Environmental Toxicology and Chemistry (SETAC) publishes two journals: Environmental Toxicology and Chemistry (ET&C) and Integrated Environmental Assessment and Management (IEAM). Environmental Toxicology and Chemistry is dedicated to furthering scientific knowledge and disseminating information on environmental toxicology and chemistry, including the application of these sciences to risk assessment.[...] Environmental Toxicology and Chemistry is interdisciplinary in scope and integrates the fields of environmental toxicology; environmental, analytical, and molecular chemistry; ecology; physiology; biochemistry; microbiology; genetics; genomics; environmental engineering; chemical, environmental, and biological modeling; epidemiology; and earth sciences. ET&C seeks to publish papers describing original experimental or theoretical work that significantly advances understanding in the area of environmental toxicology, environmental chemistry and hazard/risk assessment. Emphasis is given to papers that enhance capabilities for the prediction, measurement, and assessment of the fate and effects of chemicals in the environment, rather than simply providing additional data. The scientific impact of papers is judged in terms of the breadth and depth of the findings and the expected influence on existing or future scientific practice. Methodological papers must make clear not only how the work differs from existing practice, but the significance of these differences to the field. Site-based research or monitoring must have regional or global implications beyond the particular site, such as evaluating processes, mechanisms, or theory under a natural environmental setting.