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Related Experiment Videos

Cleanup of environmental sample extracts using Florisil solid-phase extraction cartridges.

V Lopez-Avila1, J Milanes, N S Dodhiwala

  • 1Acurex Corporation, Environmental Systems Division, Mountain View, California 94039.

Journal of Chromatographic Science
|May 1, 1989
PubMed
Summary

This study evaluates disposable Florisil cartridges for cleaning environmental samples. The method effectively separates chlorinated hydrocarbons and phthalate esters from common interfering substances.

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Area of Science:

  • Environmental Chemistry
  • Analytical Chemistry

Background:

  • Environmental samples often contain complex mixtures of organic pollutants.
  • Efficient cleanup methods are crucial for accurate analysis of target analytes.

Purpose of the Study:

  • To assess the efficacy of disposable Florisil cartridges for sample cleanup.
  • To determine elution patterns and recovery rates for specific pollutants.

Main Methods:

  • Utilized disposable cartridges containing 1 g of Florisil.
  • Tested various eluants including hexane, hexane/diethyl ether, hexane/acetone, and hexane/methylene chloride mixtures.
  • Analyzed extracts from diverse environmental matrices spiked with interferents.

Main Results:

Related Experiment Videos

  • Evaluated elution patterns and recovery rates for 22 chlorinated hydrocarbons and 16 phthalate esters.
  • Demonstrated effective separation from interferents like corn oil, diesel hydrocarbons, organochlorine pesticides, and chlorinated phenols.
  • Identified optimal eluant combinations for specific analyte classes.

    • Conclusions:

    • Disposable Florisil cartridges offer a viable and efficient method for environmental sample cleanup.
    • The method facilitates the accurate determination of chlorinated hydrocarbons and phthalate esters in complex matrices.
    • This approach supports reliable environmental monitoring and risk assessment.