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Recent Developments in Solid-Phase Extraction for Near and Attenuated Total Reflection Infrared Spectroscopic

Christian W Huck1

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PubMed
Summary

This review covers solid-phase extraction (SPE) coupled with near-infrared (NIR) and attenuated total reflection (ATR) spectroscopy. It highlights advancements in sample preparation for enhanced selectivity and sensitivity in real-world analyses.

Keywords:
attenuated total reflectionefficiencyenrichmentmid-infrared spectroscopynear-infrared spectroscopyselectivitysensitivitysolid-phase extraction

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Area of Science:

  • Analytical Chemistry
  • Spectroscopy
  • Separation Science

Background:

  • Solid-phase extraction (SPE) is crucial for sample preparation.
  • Near-infrared (NIR) and attenuated total reflection (ATR) spectroscopy offer powerful analytical capabilities.
  • Integrating SPE with NIR/ATR spectroscopy enhances sensitivity and selectivity.

Purpose of the Study:

  • To review principles and recent developments in SPE coupled with in situ NIR and ATR infrared spectroscopy.
  • To discuss new materials, chromatographic modalities, and experimental setups.
  • To compare advantages for fast sample preparation and routine analysis.

Main Methods:

  • Review of literature with over 100 references.
  • Description of novel SPE materials and chromatographic techniques.
  • Analysis of experimental setups and configurations for SPE-NIR/ATR.

Main Results:

  • Detailed comparison of SPE-NIR and SPE-ATR approaches.
  • Discussion of enhanced selectivity and sensitivity for various compound classes.
  • Examples of real sample analyses, primarily in environmental, food, and bioanalysis.

Conclusions:

  • SPE coupled with NIR/ATR spectroscopy is a potent approach for sample analysis.
  • This integration facilitates routine analysis and real sample applicability.
  • The review provides a comprehensive overview of effective SPE-NIR and SPE-ATR methods.