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Issue 6, 2005
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Performance optimisation of a passive sampler for monitoring hydrophobic organic pollutants in water

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Abstract

The performance of an integrative passive sampler that consists of a C18 Empore disk sorbent receiving phase fitted with low density polyethylene membrane was optimised for the measurement of time-weighted average concentrations of hydrophobic micropollutants in water. A substantial improvement of sampling characteristics including the rate of sampling and the sampling precision was achieved by decreasing the internal sampler resistance to mass transfer of hydrophobic organic chemicals. This was achieved by adding a small volume of n-octanol, a solvent with high permeability (solubility × diffusivity) for target analytes, to the interstial space between the receiving sorbent phase and the polyethylene diffusion-limiting membrane.

Graphical abstract: Performance optimisation of a passive sampler for monitoring hydrophobic organic pollutants in water

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Publication details

The article was received on 20 Dec 2004, accepted on 11 Apr 2005 and first published on 29 Apr 2005


Article type: Paper
DOI: 10.1039/B419070J
Citation: J. Environ. Monit., 2005,7, 612-620
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    Performance optimisation of a passive sampler for monitoring hydrophobic organic pollutants in water

    B. Vrana, G. Mills, R. Greenwood, J. Knutsson, K. Svensson and G. Morrison, J. Environ. Monit., 2005, 7, 612
    DOI: 10.1039/B419070J

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