文献类型：期刊文献

中文题名：针头式过滤器对全(多)氟化合物的过滤损失及影响因素分析

英文题名：Analysis of filtration loss and influencing factors of syringe filters for per-and polyfluoroalkyl substances

作者：陈丽平[1];俞霞[1];王佳希[1];王化伟[1];蔡兰坤[1];隋倩[1]

机构：[1]华东理工大学资源与环境工程学院,国家环境保护化工过程环境风险评价与控制重点实验室,上海200237

年份：2026

卷号：45

期号：1

起止页码：333

中文期刊名：环境化学

外文期刊名：Environmental Chemistry

收录：;北大核心:【北大核心2023】；

基金：国家自然科学基金(22376066,22076045)资助。

语种：中文

中文关键词：新污染物;全(多)氟化合物;针头式过滤器;过滤吸附;质量损失

外文关键词：emerging pollutants;per-and polyfluoroalkyl substances;syringe filters;filtration adsorption;mass loss

摘要：本研究采用四种材质(疏水聚四氟乙烯(PTFE)、亲水PTFE、尼龙(NYL)、聚醚砜(PES))、两种孔径(0.22μm和0.45μm)过滤器对3种溶剂体系(100%甲醇、50%甲醇/水和30%甲醇/水)中32种目标全(多)氟化合物(Per-and polyfluoroalkyl substances,PFASs)过滤的质量损失进行了定量分析.结果表明,在100%甲醇体系中,过滤器材质和孔径对PFASs的质量损失有显著影响,NYL过滤器的平均质量损失最大,为43.8%,而PES过滤器的损失最小,为6.7%.孔径为0.22μm的过滤器总体损失高于0.45μm孔径的过滤器.不同溶剂体系下,PFASs的质量损失也表现出显著差异,100%甲醇体系中损失最小,30%甲醇/水体系中长链PFASs的损失最高可达100%.研究结果有助于指导色谱分析前过滤器的正确选择,对痕量新污染物的准确定量分析具有重要意义.
The study conducted a quantitative analysis of the mass loss of 32 per-and polyfluoroalkyl substances(PFASs)in three different solvent systems(100%methanol,50%methanol/water,and 30%methanol/water)using filters made from four different materials(hydrophobic polytetrafluoroethylene(PTFE),hydrophilic PTFE,nylon(NYL),and polyethersulfone(PES))with two varying pore sizes(0.22μm and 0.45μm).The results revealed that both the filter material and pore size had significant impacts on PFASs mass loss in the 100%methanol system,with NYL filters demonstrating the highest average mass loss at 43.8%,while PES filters exhibited the lowest at 6.7%.In general,filters with a pore size of 0.22μm resulted in greater mass loss compared to those with a pore size of 0.45μm.Additionally,there was significant variation in PFASs mass loss across different solvent systems,with the least amount of loss occurring in the 100%methanol system,whereas long-chain PFASs experienced up to a maximum of 100%mass loss in the 30%methanol/water system.These findings provide guidance for selecting appropriate filters prior to chromatographic analysis and are essential for accurately quantifying trace emerging contaminants.