Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/42777
Título: SPME and SPE comparative study for coupling with microwave-assisted micellar extraction in the analysis of organochlorine pesticides residues in seaweed samples
Autores/as: Vega Moreno, Daura 
Sosa-Ferrera, Zoraida 
Santana Rodríguez, José Juan 
Clasificación UNESCO: 2301 química analítica
Palabras clave: Microwave
Micellar solution
Solid-phase microextraction
Solid-phase extraction
Organochlorine pesticides, et al.
Fecha de publicación: 2007
Publicación seriada: Microchemical Journal 
Resumen: Solid-phase microextraction (SPME) and solid-phase extraction (SPE) procedures were coupling with microwave-assisted micellar extraction for organochlorine pesticides residues determination in seaweed samples. They were optimized, compared and discussed. Preliminary experiments were performed in order to study experimental conditions for the extraction of pesticides from spiked seaweed samples with microwave-assisted micellar extraction (MAME) using a non-ionic surfactant (Polyoxyethylene 10 Lauryl Ether). After that, SPME and SPE were used to clean-up and preconcentrate MAME extract prior the analysis by liquid chromatography with photodiode array (PDA) detection. Excellent results were obtained for both procedures. Average pesticide recoveries between 80.5 and 104.3% for MAME-SPME and between 73.9 and 111.5% for MAME-SPE were obtained. Relative standard deviations (RSDs) were lower than 10.3% and 5.3% respectively for all recoveries tested, and LOD between 138–348 ng g− 1 for MAME-SPME and 2–38 ng g− 1 for MAME-SPE were obtained. The method was validated using Soxhlet extraction procedure. Both methods were applied to analyse target organochlorine pesticides in several seaweed samples and results were compared. These results show the great possibilities of combining MAME-SPE-HPLC-UV for the analysis of seaweed samples, improving the selectivity and sensitivity in the determination of organochlorine pesticides analysis for this kind of samples.
URI: http://hdl.handle.net/10553/42777
ISSN: 0026-265X
DOI: 10.1016/j.microc.2007.07.002
Fuente: Microchemical Journal [ISSN 0026-265X], v. 87 (2), p. 139-146
Colección:Artículos
Vista completa

Citas SCOPUSTM   

31
actualizado el 24-mar-2024

Citas de WEB OF SCIENCETM
Citations

25
actualizado el 25-feb-2024

Visitas

89
actualizado el 23-ene-2024

Google ScholarTM

Verifica

Altmetric


Comparte



Exporta metadatos



Los elementos en ULPGC accedaCRIS están protegidos por derechos de autor con todos los derechos reservados, a menos que se indique lo contrario.