Dioxin analysis in water by using a passive sampler and CALUX bioassay

Amr Addeck, Kim Croes, Kersten Van Langenhove, Michael Denison, Marc Elskens, Willy Baeyens

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Passive sampling of organic pollutants is a new trend in environmental monitoring and analysis. Passive samplers are being developed to overcome the drawbacks of the conventional snapshot sampling approach. The ceramic toximeter is a promising passive sampler for monitoring dioxin-contaminated surface and ground waters. It consists of an alumina cylinder lined with a thin coating of titania and a pore diameter of 0.05 μm. The cylinder serves as a diffusion barrier limiting the analyte transport to molecular diffusion only, as well as a container for a selective trapping material of a high capacity and affinity towards the chemical(s) of concern. The cylinder is closed from both sides with PTFE caps. The ceramic toximeter was filled with activated carbon as the trapping material and has been tested in vitro for the sampling of dioxin-contaminated water. In addition, the utilization of the CALUX bioassay technique for analyzing the trapped dioxin has greatly reduced the time and costs for dioxin scanning in aqueous media. Exposure times varied between 1 and 7 days in a solution of 1.35 ng-TCDD L -1 (TCDD is 2,3,7,8-tetrachlorodibenzodioxin). The mean effective molecular diffusion coefficient of TCDD in the toximeter amounts to 11.9 × 10 -6 m 2 d -1 while the minimum concentration detectable in an aquatic system after 30 days of exposure amounts to 0.89 pg-TCDD L -1.

Original languageEnglish (US)
Pages (from-to)73-78
Number of pages6
JournalTalanta
Volume88
DOIs
StatePublished - Jan 15 2012

Fingerprint

Dioxins
Bioassay
Biological Assay
Water
Sampling
Ceramics
Diffusion barriers
Aluminum Oxide
Monitoring
Organic pollutants
Polytetrafluoroethylene
Surface waters
Activated carbon
Environmental Monitoring
Containers
Groundwater
Scanning
Coatings
Carbon
Polychlorinated Dibenzodioxins

Keywords

  • CALUX
  • Ceramic toximeter
  • Passive sampling
  • PCDD/F

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Addeck, A., Croes, K., Van Langenhove, K., Denison, M., Elskens, M., & Baeyens, W. (2012). Dioxin analysis in water by using a passive sampler and CALUX bioassay. Talanta, 88, 73-78. https://doi.org/10.1016/j.talanta.2011.10.009

Dioxin analysis in water by using a passive sampler and CALUX bioassay. / Addeck, Amr; Croes, Kim; Van Langenhove, Kersten; Denison, Michael; Elskens, Marc; Baeyens, Willy.

In: Talanta, Vol. 88, 15.01.2012, p. 73-78.

Research output: Contribution to journalArticle

Addeck, A, Croes, K, Van Langenhove, K, Denison, M, Elskens, M & Baeyens, W 2012, 'Dioxin analysis in water by using a passive sampler and CALUX bioassay', Talanta, vol. 88, pp. 73-78. https://doi.org/10.1016/j.talanta.2011.10.009
Addeck A, Croes K, Van Langenhove K, Denison M, Elskens M, Baeyens W. Dioxin analysis in water by using a passive sampler and CALUX bioassay. Talanta. 2012 Jan 15;88:73-78. https://doi.org/10.1016/j.talanta.2011.10.009
Addeck, Amr ; Croes, Kim ; Van Langenhove, Kersten ; Denison, Michael ; Elskens, Marc ; Baeyens, Willy. / Dioxin analysis in water by using a passive sampler and CALUX bioassay. In: Talanta. 2012 ; Vol. 88. pp. 73-78.
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