Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 408196
Title Calibration of Silicone Rubber Passive Samplers: Experimental and Modeled Relations between Sampling Rate and Compound Properties
Author(s) Rusina, T.P.; Smedes, F.; Koblizkova, M.; Klanova, J.
Source Environmental Science and Technology 44 (2010)1. - ISSN 0013-936X - p. 362 - 367.
DOI http://dx.doi.org/10.1021/es900938r
Publication type Refereed Article in a scientific journal
Publication year 2010
Keyword(s) semipermeable-membrane devices - polycyclic aromatic-hydrocarbons - organic contaminants - uptake kinetics - hydrophobic chemicals - surface waters - spmds - coefficients - pollutants - partition
Abstract Sampling rates (R-s) for silicone rubber (SR) passive samplers were measured under two different hydrodynamic conditions. Concentrations were maintained in the aqueous phase by continuous equilibration with SR sheets of a large total surface area which had been spiked with polycyclic aromatic hydrocarbons and/or polychlorinated biphenyls. Test sheets made of the same SR but of much smaller surface area were used to measure the uptake rate. Measured R-s values decreased with increasing passive sampler-water partition coefficient(K-pw) according to R-s approximate to K-pw(-0.08) under both hydrodynamic conditions. This decrease is not significantly different from modeled values if the uncertainty of the diffusion coefficients in water is included. Modeling also confirmed that uptake of the test compounds under the experimental conditions was entirely controlled by diffusion in the water phase. A model using R-s approximate to M-0.47 is suggested for extrapolation of R-s estimated from the dissipation of performance reference compounds to target compounds in a higher hydrophobicity range.
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