Characterizing Sorption and Permeation Properties of Membrane Filters Used for Aquatic Integrative Passive Samplers
被引:40
作者:
Endo, Satoshi
论文数: 0引用数: 0
h-index: 0
机构:
Osaka City Univ, Urban Res Plaza, Sumiyoshi Ku, Sugimoto 3-3-138, Osaka 5588585, Japan
Osaka City Univ, Grad Sch Engn, Sumiyoshi Ku, Sugimoto 3-3-138, Osaka 5588585, JapanOsaka City Univ, Urban Res Plaza, Sumiyoshi Ku, Sugimoto 3-3-138, Osaka 5588585, Japan
Endo, Satoshi
[1
,2
]
Matsuura, Yunosuke
论文数: 0引用数: 0
h-index: 0
机构:
Osaka City Univ, Grad Sch Engn, Sumiyoshi Ku, Sugimoto 3-3-138, Osaka 5588585, JapanOsaka City Univ, Urban Res Plaza, Sumiyoshi Ku, Sugimoto 3-3-138, Osaka 5588585, Japan
Matsuura, Yunosuke
[2
]
机构:
[1] Osaka City Univ, Urban Res Plaza, Sumiyoshi Ku, Sugimoto 3-3-138, Osaka 5588585, Japan
[2] Osaka City Univ, Grad Sch Engn, Sumiyoshi Ku, Sugimoto 3-3-138, Osaka 5588585, Japan
Aquatic integrative passive sampling is a promising approach to measure the time-weighted average concentration, yet our understanding for the sampling mechanisms of polar organic contaminants should be further advanced to fully exploit the potential of the method for real-world applications. This study aimed to characterize the sorption and permeation properties of poly(ether sulfone) (PES) and poly(tetrafluoroethylene) (PTFE) membrane filters (MFs) used for passive samplers. Batch sorption experiments with 14 probe chemicals showed that the sorption by PES was generally strong, with the respective sorption coefficients greater than the octanol water partition coefficients by 2-3 log units. In contrast, the PTFE filter exhibited no significant sorption for all tested chemicals, representing a promising candidate MF that avoids lag-times and slow responses to fluctuating concentrations. Permeation experiments in a glass cell system and successive modeling demonstrated that, if no sorption to the MF occurs, the MF permeation of a chemical can be fully described with a first-order model that considers the transfer through the aqueous boundary layers and the diffusion in water-filled MF pores. Significant sorption to the MF coincided with substantial delay of permeation, which was successfully modeled with the local sorption equilibrium assumption. These findings have implications for improved sampler configurations and successful models for the chemical uptake.