Estimation of Measurement Uncertainties for the DGT Passive Sampler Used for Determination of Copper in Water
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...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Analytical Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2014/389125 |
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| author | Jesper Knutsson Sebastien Rauch Gregory M. Morrison |
| author_facet | Jesper Knutsson Sebastien Rauch Gregory M. Morrison |
| author_sort | Jesper Knutsson |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-dec33160751b40938e95f6d7a17a7212 |
| institution | Kabale University |
| issn | 1687-8760 1687-8779 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Analytical Chemistry |
| spelling | doaj-art-dec33160751b40938e95f6d7a17a72122025-08-20T03:26:15ZengWileyInternational Journal of Analytical Chemistry1687-87601687-87792014-01-01201410.1155/2014/389125389125Estimation of Measurement Uncertainties for the DGT Passive Sampler Used for Determination of Copper in WaterJesper Knutsson0Sebastien Rauch1Gregory M. Morrison2Department of Water Environment Technology, Division of Civil and Environmental Engineering, Chalmers University of Technology, 412 96 Göteborg, SwedenDepartment of Water Environment Technology, Division of Civil and Environmental Engineering, Chalmers University of Technology, 412 96 Göteborg, SwedenDepartment of Water Environment Technology, Division of Civil and Environmental Engineering, Chalmers University of Technology, 412 96 Göteborg, SwedenDiffusion-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.http://dx.doi.org/10.1155/2014/389125 |
| spellingShingle | Jesper Knutsson Sebastien Rauch Gregory M. Morrison Estimation of Measurement Uncertainties for the DGT Passive Sampler Used for Determination of Copper in Water International Journal of Analytical Chemistry |
| title | Estimation of Measurement Uncertainties for the DGT Passive Sampler Used for Determination of Copper in Water |
| title_full | Estimation of Measurement Uncertainties for the DGT Passive Sampler Used for Determination of Copper in Water |
| title_fullStr | Estimation of Measurement Uncertainties for the DGT Passive Sampler Used for Determination of Copper in Water |
| title_full_unstemmed | Estimation of Measurement Uncertainties for the DGT Passive Sampler Used for Determination of Copper in Water |
| title_short | Estimation of Measurement Uncertainties for the DGT Passive Sampler Used for Determination of Copper in Water |
| title_sort | estimation of measurement uncertainties for the dgt passive sampler used for determination of copper in water |
| url | http://dx.doi.org/10.1155/2014/389125 |
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