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Laboratory performance study for passive sampling of nonpolar chemicals in water

Author:
Booij, Kees, Smedes, Foppe, Crum, Steven
Source:
Environmental toxicology and chemistry 2017 v.36 no.5 pp. 1156-1161
ISSN:
0730-7268
Subject:
hexachlorobenzene, models, polybrominated diphenyl ethers, polychlorinated biphenyls, polycyclic aromatic hydrocarbons, rivers, samplers, silicone, Netherlands
Abstract:
Two laboratory performance studies with 21 and 11 participants were carried out for passive sampling of nonpolar chemicals in water, using silicone samplers that were deployed for 7 wk and 13 wk at 2 river sites in the Netherlands. Target analytes were polychlorinated biphenyls, polycyclic aromatic hydrocarbons (PAHs), polybrominated diphenyl ethers (PBDEs), hexachlorobutadiene, hexachlorobenzene, and a number of performance reference compounds (PRCs). Calculation of aqueous concentrations based on prescribed input values and a prescribed uptake model was also included. Between‐laboratory coefficients of variation (CVs) in the analysis of target compounds were approximately 20% at concentrations of 100 ng g⁻¹ and approximately 100% at concentrations of 0.01 ng g⁻¹, which was similar to previous results for the analysis of biota samples. The analysis of PRCs yielded water sampling rates with a between‐laboratory CV of 18% to 30%. The sampling rate model showed a nearly perfect match with the consensus values of retained PRCs. The implications of the present study for future interlaboratory exercises are discussed. Environ Toxicol Chem 2017;36:1156–1161. © 2016 SETAC
Agid:
5718733