Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
Mechanistic insight on transfer rate of the polar organic compounds through the polyethersulfone membrane
Sharifan, H. (2020). Mechanistic insight on transfer rate of the polar organic compounds through the polyethersulfone membrane. Environ. Monit. Assess. 192(6): Article number: 344. https://dx.doi.org/10.1007/s10661-020-08309-y
In: Environmental Monitoring and Assessment. Kluwer: Dordrecht. ISSN 0167-6369; e-ISSN 1573-2959, meer
|  |
| Author keywords |
Passive sampler; Polar organic compounds; PES membrane; Solute transfer rate; Mechanism |
| Abstract |
Polar Organic Chemical Integrative Samplers (POCIS) with two supporting polyethersulfone (PES) membranes and a strong adsorbent in between are frequently used to determine the concentrations of polar organic contaminants in the aqueous environment. The solute transfer rate (SRs) through PES is a key parameter affecting the critical membrane/water partitioning coefficient (Rmw) of polar organic molecules, which in turn affects the concentration of these molecules on the adsorbent and the accuracy of POCIS measurement. However, information on SRs and Rmw in the literature is very limited. Prolonged use of POCIS in the measurement of organic compounds may lead to membrane fouling by the retained organic compounds. The relationship between the properties of the polar organic compounds and their different accumulation behaviors in POCIS is not yet clear. This study aimed to measuring the solute transfer rate of four polar organic compounds (atrazine, caffeine, ibuprofen, and atenolol). The results indicated that atrazine had the highest SR of 0.49 mL day−1. Both caffeine and atenolol had an SRs of approximately 0.3 mL day−1. Ibuprofen had the lowest SR of 0.23 mL day−1. The results further revealed that the tendency of the organic solutes to adsorb onto interstitial spaces of the PES polymer was associated with their hydrophobicity and molecular structures. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
