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Related Experiment Videos

Antibody-based methods for surfactant screening.

M Fránek1, J Zeravík, S A Eremin

  • 1Department of Biotechnology, Veterinary Research Institute, Brno, Czech Republic. franek@vri.cz

Fresenius' Journal of Analytical Chemistry
|January 5, 2002
PubMed
Summary

This study developed antibody-based immunoassays, including ELISA, PFIA, and FIIA, for detecting surface active compounds like LAS and NP. The methods offer rapid and sensitive detection in environmental samples.

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Area of Science:

  • Analytical Chemistry
  • Environmental Science
  • Immunotechnology

Background:

  • Surface active compounds (SAC) pose environmental risks.
  • Accurate detection methods are crucial for monitoring.
  • Existing methods for SAC detection can be complex and time-consuming.

Purpose of the Study:

  • To simplify and improve immunoassay-based detection of SAC.
  • To develop antibody-based methods for linear alkylbenzene sulfonates (LAS) and nonylphenol (NP).
  • To establish rapid and sensitive screening tools for environmental analysis.

Main Methods:

  • Production of analytical antibodies against LAS and NP via immunisation.
  • Development and application of enzyme-linked immunosorbent assays (ELISA).

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  • Implementation of homogeneous polarisation fluoro immunoassays (PFIA) and enzyme flow injection immunoassays (FIIA).

    • Main Results:

    • Antibodies with high sensitivity for LAS (IC50 19.8 µg L⁻¹) and NP (mg L⁻¹ range) were generated.
    • PFIA enabled rapid screening of NP and LAS in 7 minutes.
    • FIIA demonstrated effective screening of LAS, NP, and NPEO10 with low limits of detection (LOD) in water samples.

    Conclusions:

    • Immunoassay techniques, particularly PFIA and FIIA, provide efficient tools for SAC detection.
    • The developed methods simplify SAC detection procedures.
    • These immunoassays are suitable for screening environmental water samples for contaminants.