布틸的聚合物-水分区系数和聚甲基素被动样本用于使用共溶剂方法的多环芳化合物
Oktay Eren Tureyen1, Sevil Deniz Yakan2, Atilla Yilmaz3
1Faculty of Naval Architecture and Ocean Engineering, Istanbul Technical University, 34469, Istanbul, Türkiye. tureyen@itu.edu.tr.
Environmental science and pollution research international
|September 22, 2025
概括
这项研究确定了15种多环芳 (PAH) 的丁 (BR) 和聚甲 (PDMS) 被动样本的聚合物-水分区系数 (Kpw). 分子重量准确地预测了这些新型样本中的PAH分区行为.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 聚合物科学 聚合物科学
背景情况:
- 多环芳 (PAH) 是水生环境中的持久性,生物积累性和有毒污染物.
- 准确测量自由溶解度对于评估PAH风险至关重要.
- 聚合物-水分区系数 (Kpw) 对于被动采样量化至关重要.
研究的目的:
- 首次实验性地确定丁 (BR) 无源样本的Kpw值.
- 为了比较BR样本的Kpw值与聚甲基 (PDMS) 参考样本.
- 建立BR样本中PAHs的Kpw值的预测模型.
主要方法:
- 使用甲醇的共同溶剂方法用于确定Kpw值.
- 分析了15种不同的多环芳 (PAH).
- 确定PDMS,单网络BR (SN10) 和三网络BR (TN) 采样器的Kpw值.
主要成果:
- 对于PDMS的Log Kpw值在3.6至6.4.4之间.
- 对SN10和TN BR样本的Log Kpw值较窄,分别为3.0至4.6和3.0至3.7.
- 结合分子重量的二阶回归模型显示,在BR样本中预测Kpw的高相关性 (R2=0.830.98).
结论:
- 与PDMS相比,丁酸被动样本显示出明显的分区行为.
- 分子重量是BR样本中PAH分区的更有效的预测因素,而不是八醇-水分区系数.
- 开发的回归方程为估计Kpw值和验证BR被动采样应用的模型提供了有价值的工具.
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