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On-line sample treatment for or via column liquid chromatography
1Department of Analytical Chemistry, Free University, Amsterdam, Netherlands.
Journal of Chromatography. A
|April 15, 1994
Summary
Automated on-line liquid chromatography (LC) systems with precolumns streamline trace-level organic analysis. These systems improve sample preparation, enhancing environmental and biomedical applications.
Area of Science:
- Analytical Chemistry
- Chromatography
- Environmental Science
Background:
- Sample treatment is a significant bottleneck in trace-level organic analysis.
- Existing methods often lack automation and efficiency for complex sample matrices.
Purpose of the Study:
- To present automated on-line precolumn/analytical column liquid chromatography (LC) systems.
- To highlight solutions for overcoming sample treatment challenges in trace analysis.
Main Methods:
- Development and commercialization of automated on-line LC systems.
- Utilizing small precolumns packed with diverse sorbents.
- Integration of diode-array UV or mass spectrometric detection.
Main Results:
- Demonstrated success in environmental and biomedical applications.
- Effective use of on-line (electro)dialysis modules.
- LC-type trace enrichment and clean-up on precolumns show promise.
Conclusions:
- Automated on-line LC systems represent a significant advancement in trace analysis.
- These systems effectively address sample treatment bottlenecks.
- LC precolumn techniques are valuable for on-line sample preparation prior to gas chromatography.