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Determination of triazines in water samples by high-performance liquid chromatography with diode-array detection
M S Dopico1, M V González, J M Castro
1Departamento de Química Analítica, Escuela Universitaria Politécnica, Universidade da Coruña, Ferrol, Spain.
Journal of Chromatographic Science
|November 16, 2002
Summary
This study compares carbonaceous and polymeric adsorbents to C18 for solid-phase extraction of triazine herbicides like simazine and atrazine in water. The goal is to improve trace-level detection using high-performance liquid chromatography.
Area of Science:
- Environmental Chemistry
- Analytical Chemistry
Background:
- Triazine herbicides are prevalent environmental contaminants.
- Trace-level detection of triazines necessitates a preconcentration step.
- Simazine, atrazine, and propazine are common triazine herbicides.
Purpose of the Study:
- To compare the efficacy of carbonaceous and polymeric adsorbents against C18 for solid-phase extraction (SPE) of triazines.
- To optimize preconcentration methods for environmental water samples.
- To enable accurate quantification of simazine, atrazine, and propazine.
Main Methods:
- Solid-phase extraction (SPE) using carbonaceous, polymeric, and C18 adsorbents.
- Analysis of water samples by high-performance liquid chromatography (HPLC).
- Detection using photodiode-array (PDA) detection.
Main Results:
- Evaluation of different adsorbent materials for triazine SPE.
- Determination of simazine, atrazine, and propazine levels in water.
- Comparison of extraction efficiencies for various adsorbents.
Conclusions:
- Carbonaceous and polymeric adsorbents show potential for triazine herbicide preconcentration.
- Effective preconcentration is crucial for accurate trace analysis of triazines in environmental matrices.
- HPLC-PDA offers a viable method for quantifying these herbicides post-extraction.