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Published:Journal of Chromatographic Science,
ISSN 0021-9665 Volume
46, Number 4, April 2008, pp. 325-331
Implementation of Solid-Phase Microextraction
with Micellar Desorption Method for Priority Phenolic Compound
Determination in Natural Waters
M.E. Torres Padrón, C. Mahugo Santana,
Z. Sosa Ferrera, and J.J. Santana Rodríguez
University of Las Palmas de Gran Canaria, Department of Chemistry
Eleven phenolic compounds considered by the Environmental
Protection Agency to be priority pollutants are extracted and
determined in different water samples. The method involves the
extraction and clean-up step of target compounds by solid-phase
microextraction and micellar desorption (SPME–MD) and a
second step of determination by liquid chromatography with diode
array detection. Different fibers and surfactants are evaluated
for the analysis of these target analytes in water samples. In
the optimum conditions for the SPME process, recoveries for the
target compounds are between 80% and 109%; relative standard
deviations are lower than 10%, and detection limits are in the
range 0.3–3.5
ng/mL. The main advantages of this method are the combination
of time and efficiency, safety, and an environmentally friendly
process for sample extraction prior to instrumental determination.
This demonstrates that SPME–MD can be used as an alternative
to traditional methods for the extraction and determination of
priority phenolic compounds in natural waters from different
origins.
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