Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Predicting organic contaminant concentrations in sediment porewater using solid-phase microextraction.

Ze-Yu Yang1, Eddy Y Zeng, Keith A Maruya

  • 1State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, P.O. Box 1131, Guangzhou, Guangdong 510640, China.

Chemosphere
|November 10, 2006
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Biological pump regulation of antibiotic bioaccumulation in size-fractionated planktonic food webs.

Journal of hazardous materials·2026
Same author

Toxicokinetics of typical halogenated organic pollutants (HOPs) in frogs (Rana tigrina cantor) via skin exposure and effects of hibernation.

Environmental pollution (Barking, Essex : 1987)·2025
Same author

Biotransformation causes the sex-specific regulation of polychlorinated biphenyls during metamorphosis of silkworm (Bombyx mori) and their effect on the silkworm development.

Journal of hazardous materials·2025
Same author

Emerging and Legacy Traffic-Related Nitrogen-Containing Organic Compounds (TNOCs) in Pregnant Women: Exposure Levels, Seasonal Variation, and Health Risks.

Environment & health (Washington, D.C.)·2025
Same author

Species- and sex-specific bioaccumulation, tissue-specific distribution, and maternal transfer of per- and polyfluoroalkyl substances in tiger frogs (Hoplobatrachus chinensis) and forest frogs (Rana chensinensis).

Environmental research·2025
Same author

Effects of hibernation on the bioaccumulation and tissue distribution of per- and polyfluoroalkyl substances in frogs (Rana tigrina cantor) via skin exposure.

Environmental pollution (Barking, Essex : 1987)·2025

Solid-phase microextraction (SPME) models predict minimal sediment volumes for analyzing hydrophobic organic contaminants (HOCs) in porewater. These models are independent of HOC concentrations, aiding in bioavailability assessments.

Area of Science:

  • Environmental Chemistry
  • Analytical Chemistry
  • Environmental Science

Background:

  • Solid-phase microextraction (SPME) is a cost-effective biomimic technique for assessing bioavailable hydrophobic organic contaminants (HOCs) in sediment porewater.
  • A predictive modeling framework is needed to understand SPME performance for this application, considering key environmental parameters.

Purpose of the Study:

  • To develop governing equations for predicting minimum sediment volume (V(s)min) for non-depletive SPME conditions.
  • To model dissolved HOC porewater concentrations (C(pw)) as a function of HOC and sediment characteristics.
  • To provide a framework for optimizing SPME experimental designs and predicting HOC bioavailability.

Main Methods:

  • Derived two governing equations within a conceptual three-compartment system.

Related Experiment Videos

  • Analyzed the influence of hydrophobicity (logK(ow)), porewater fraction (f(pw)), and SPME sorbent volume (V(f)) on V(s)min.
  • Investigated the relationship between sediment volume (V(s)) and predicted C(pw) for SPME detection limits.

    • Main Results:

    • Minimum sediment volume (V(s)min) is independent of HOC concentrations but varies with hydrophobicity, porewater fraction, and SPME sorbent volume.
    • V(s)min effects plateau as hydrophobicity (logK(ow)) increases towards 4-5.
    • Predicted porewater concentrations (C(pw)) level off with increasing sediment volume, indicating small sediment volumes are sufficient for SPME analysis.

    Conclusions:

    • SPME performance in sediment porewater analysis is governed by specific parameters, not solely HOC concentrations.
    • Relatively small sediment volumes are crucial for the exchange equilibrium in SPME, improving detection sensitivity.
    • The developed modeling framework aids in designing future experiments and predicting in situ bioavailability of sediment-associated HOCs.