RT info:eu-repo/semantics/article
T1 Development of a dispersive liquid-liquid microextraction coupled with magnetic dispersive microsolid phase extraction for determination of triazines in wastewater samples
A1 Aguilar Arteaga, Karina
A1 Hernández Mera, Chintia
A1 Díaz Batalla, Luis
A1 Castañeda Ovando, Araceli
A1 Cruz Pérez, Alida E.
A1 Barrado Esteban, Enrique
A1 Carrillo Cárdenas, Manuel
K1 Coupled microextraction techniques.Magnetic adsorbents.Triazines.Dispersive liquid-liquid microextraction.Magnetic dispersive microsolid phase extraction
AB The combination of two microextraction techniques (dispersive liquid-liquid microextraction [DLLME] and magnetic dispersivemicrosolid phase extraction [MDMSPE]) was developed and reported for atrazine and simazine preconcentration from wastewatersamples. The proposal methodology involved the use of magnetite supports functionalized with different alkyl or phenyl groups. Themagnetic adsorbents were synthesized by the solvothermal methodassisted by microwave, characterized, and used in the samplepreconcentration of atrazine and simazine. The method validation included parameters such as the wastewater matrix effect, repeat-ability, and recovery. The analyte separation and quantification were performed by high-performance liquid chromatography withultraviolet detection (HPLC-DAD). Parameters, such as the polarity and mass of magnetic solids and pH, were evaluated to providebetter extraction performance. The highest recoveries (> 95%) were obtained with 50 mg of the phenyl group support (CS2) at pH 5,using 5 mL of the sample and carbon tetrachloride and methanol, as extraction and dispersive solvents, respectively. The lowest limitsof detection (LOD) achieved were 13.16 and 13.86 ng L−1, and the limits of quantification (LOQ) were 43.89 and 46.19 ng L−1forsimazine and atrazine, respectively, with repeatability (expressed as %RSD) below 5% in all cases. The developed method is simple,easy, and low cost for the analysis of two herbicides potentially dangerous for environmental and human health.
PB Spinger
SN 1618-2642
YR 2020
FD 2020
LK http://uvadoc.uva.es/handle/10324/41224
UL http://uvadoc.uva.es/handle/10324/41224
LA eng
NO 230.	K. Aguilar-Arteaga, C. Hernandez-Mera, L. Diaz-Batalla, A. Castañeda-Ovando, A. Cruz-Pérez; E. Barrado, M.A. Carrillo-Cardenas. Development of a dispersive liquid-liquid microextraction coupled with magnetic dispersive microsolid phase extraction for determination of triazines in wastewater samples ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 412 (2020) 1203–1213
NO Producción Científica
DS UVaDOC
RD 22-nov-2024