estimation of measurement uncertainties for the dgt passive sampler used for determination of copper in water
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ID: 200337
2014
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Abstract
Diffusion-based passive samplers are increasingly used for water quality monitoring. While the overall method robustness and reproducibility for passive samplers in water are widely reported, there has been a lack of a detailed description of uncertainty sources. In this paper an uncertainty budget for the determination of fully labile Cu in water using a DGT passive sampler is presented. Uncertainty from the estimation of effective cross-sectional diffusion area and the instrumental determination of accumulated mass of analyte are the most significant sources of uncertainty, while uncertainties from contamination and the estimation of diffusion coefficient are negligible. The results presented highlight issues with passive samplers which are important to address if overall method uncertainty is to be reduced and effective strategies to reduce overall method uncertainty are presented.
| Reference Key |
knutsson2014internationalestimation
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|---|---|
| Authors | ;Jesper Knutsson;Sebastien Rauch;Gregory M. Morrison |
| Journal | Pesticide biochemistry and physiology |
| Year | 2014 |
| DOI |
10.1155/2014/389125
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