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A Whole Cell Bioreporter Approach to Assess Transport and Bioavailability of Organic Contaminants in Water Unsaturated Systems

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Published on: December 24, 2014

SPME in environmental analysis: biotransformation pathways.

Annamaria Halasz¹, Jalal Hawari

¹Biotechnology Research Institute, NCR, 6100 Royalmount Ave., Montreal (QC), Canada.

Journal of Chromatographic Science

|August 24, 2006

Summary

Solid-phase microextraction (SPME) is a solvent-free method for analyzing environmental chemicals. This review covers its use in gas chromatography (GC) and high-performance liquid chromatography (HPLC) for understanding chemical degradation.

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Area of Science:

Environmental Chemistry
Analytical Chemistry
Separation Science

Background:

Solid-phase microextraction (SPME) offers an organic solvent-free approach for sample preparation.
It enables direct analyte adsorption from various sample phases (headspace, aqueous).
SPME is compatible with both gas chromatography (GC) and high-performance liquid chromatography (HPLC).

Purpose of the Study:

To critically review the application of SPME-GC and SPME-HPLC for determining environmental chemicals.
To examine the insights SPME provides into chemical (bio)transformation pathways.
To discuss future prospects of SPME in real-time in situ process monitoring, including process analytical chemistry.

Main Methods:

Utilizes SPME fibers coated with diverse polymers for extracting chemicals with varied properties.
Analyzes adsorbed analytes via GC or HPLC after thermal or solvent desorption.
Focuses on reviewing existing literature on SPME applications in environmental analysis.

Main Results:

SPME effectively minimizes interference from complex matrices like biological samples or reaction mixtures.
The technique facilitates real-time measurements of reaction intermediates, aiding in pathway elucidation.
SPME-GC and SPME-HPLC are established methods for analyzing frequently encountered environmental contaminants.

Conclusions:

SPME is a versatile and efficient tool for environmental chemical analysis and degradation pathway studies.
Its solvent-free nature aligns with green chemistry principles.
Future applications in process analytical chemistry and real-time monitoring are promising.