Use of micellar liquid chromatography for rapid monitoring of fungicides post harvest applied to citrus wastewater
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Títol
Use of micellar liquid chromatography for rapid monitoring of fungicides post harvest applied to citrus wastewaterAutoria
Data de publicació
2016Editor
ElsevierISSN
1001-0742Cita bibliogràfica
PERIS-VICENTE, Juan, et al. Use of micellar liquid chromatography for rapid monitoring of fungicides post harvest applied to citrus wastewater. Journal of Environmental Sciences, 2016.Tipus de document
info:eu-repo/semantics/articleVersió
info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/publishedVersion
Paraules clau / Matèries
Resum
A method based on micellar liquid chromatography has been developed to simultaneously monitor four pesticides largely post-harvest applied to citrus: thiabendazole, pyrimethanil, o-phenylphenol and imazalil. Water ... [+]
A method based on micellar liquid chromatography has been developed to simultaneously monitor four pesticides largely post-harvest applied to citrus: thiabendazole, pyrimethanil, o-phenylphenol and imazalil. Water samples were filtered and directly injected without other treatment, thus avoiding extraction steps. The composition of the mobile phase was optimized using a chemometrical approach to achieve and excellent resolution to 0.07 mol/L SDS/5%, V/V 1-pentanol buffered at pH 3. Mobile phase run through a C18 column at 1 mL/min at room temperature. The detection was performing by UV–Visible absorbance using a wavelength program: 0–10 min, 305 nm (for thiabendazole); 10–12; 265 nm (for pyrimethanil) and 12–18, 220 nm (o-phenylphenol and imazalil). The developed method was validated following the guidelines of the US Environmental Protection Agency in terms of: quantitation range, (0.5–4 to 15 μg/mL), linearity (r2 > 0.9995), sensitivity (LOD, 0.18–1.4 μg/mL), precision (< 9.2%), trueness (93.9%–103.7%), and ruggedness (< 9.9%). It was found that the fungicides remain up to eight days in surface water at outdoor conditions. The method was used to screen the presence of the analytes in several waste water samples, and was proved to be useful in routine analysis. [-]
Publicat a
Journal of Environmental Sciences Volume 42, April 2016, Pages 284–292Drets d'accés
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