Development of a New Polar Organic Chemical Integrative Sampler for 1,4‐dioxane Using Silicone Membrane as a Diffusion Barrier

Development of a New Polar Organic Chemical Integrative Sampler for 1,4‐dioxane Using Silicone Membrane as a Diffusion Barrier
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使用硅胶膜作为扩散屏障开发新型 1,4-二恶烷极性有机化学一体化采样器

DOI:
10.1002/etc.5518
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发表时间:
2023
影响因子:
4.1
通讯作者:
Yabuki Yoshinori
Yabuki Yoshinori
中科院分区:
环境科学与生态学3区
文献类型:
--
作者:
Noro Kazushi;Endo Satoshi;Inoue Daisuke;Suzuki Natsumi;Kameoka Hiroshi;Ono Junko;Nakamura Satoshi;Yabuki Yoshinori

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必须针对 1,4-二恶烷开发有效的监测方法,该物质被怀疑对人类具有致癌性,并且在水生环境中具有很高的流动性。在这方面,极性有机化学综合采样器(POCIS)已被广泛用作被动采样器,用于确定亲水性有机化合物的时间加权平均浓度。然而,由于动力学采样时间有限,POCIS 很难应用于具有负对数辛醇-水分配系数 (Kow) 值的极其亲水的已知有机化合物。在本研究中,我们使用具有高吸附能力的活性炭吸附剂和双层硅树脂和聚醚砜膜来抑制向吸附剂的质量传递,开发了一种 POCIS 装置来测量 1,4-二恶烷 (logKow−0.27)。渗透和现场校准测试表明,有机硅膜的使用有效降低了水到吸附剂的传质速率。现场校准测试确定的采样率和动力学采样周期分别为1.4mlday−1和>14天。最后,将开发的 POCIS 装置应用于垃圾填埋场处理厂来测定 1,4-二恶烷浓度。Environ Toxicol Chem2023;42:296–302。 © 2022 SETAC 版权所有
Efficient monitoring methods must be developed for 1,4‐dioxane, which is suspected to be carcinogenic to humans and is highly mobile in aquatic environments. In this regard, polar organic chemical integrative samplers (POCIS) have been utilized extensively as passive samplers for determining time‐weighted average concentrations of hydrophilic organic compounds. However, POCIS are difficult to apply to extremely hydrophilic known organic compounds with negative log octanol–water partition coefficient (Kow) values due to their limited kinetic sampling time. Using an activated carbon‐based sorbent with a high adsorption capacity and a bilayer of silicone and polyethersulfone membranes that inhibit mass transfer to the sorbent, we developed a POCIS device to measure 1,4‐dioxane (logKow−0.27) in the present study. Permeation and field calibration tests demonstrated that the use of silicone membranes effectively reduces the water‐to‐sorbent mass transfer rate. The sampling rate and kinetic sampling period determined by field calibration tests were 1.4 ml day−1and >14 days, respectively. Finally, the developed POCIS device was applied to a landfill treatment plant to determine the 1,4‐dioxane concentrations.Environ Toxicol Chem2023;42:296–302. © 2022 SETAC
DOI: 10.1002/etc.4225
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影响因子: 8.8
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