Analysis of thiabendazole, 4-tert-octylphenol and chlorpyrifos in waste and sewage water by direct injection – micellar liquid chromatography
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comunitat-uji-handle2:10234/7013
comunitat-uji-handle3:10234/8638
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Title
Analysis of thiabendazole, 4-tert-octylphenol and chlorpyrifos in waste and sewage water by direct injection – micellar liquid chromatographyAuthor (s)
Date
2015-01Publisher
Royal Society of ChemistryBibliographic citation
ROMERO CANO, Ricard; KASSUHA, Diego; PERIS VICENTE, Juan; ROCA GENOVÉS, Pasqual; CARDA BROCH, Samuel; ESTEVE ROMERO, Josep. Analysis of thiabendazole, 4-tert-octylphenol and chlorpyrifos in waste and sewage water by direct injection – micellar liquid chromatography. Analyst (2015), v. 140, issue 5, pp. 1739-1746Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
A micellar liquid chromatographic method has been developed for the simultaneous quantification of the pesticides thiabendazole and chlorpyrifos, as well as an alkylphenol, which is included in pesticide formulations, ... [+]
A micellar liquid chromatographic method has been developed for the simultaneous quantification of the pesticides thiabendazole and chlorpyrifos, as well as an alkylphenol, which is included in pesticide formulations, i.e., 4-tert-octylphenol, in water. A sample was filtered and directly injected, avoiding large extraction steps using toxic solvents, thus expediting the experimental procedure. The contaminants were
eluted without interferences in <17 min, using a mobile phase of 0.15 M sodium dodecyl sulfate – 6% 1-pentanol buffered at pH 3, running through a C18 column at 1 mL min−1 under the isocratic mode. This optimal mobile phase was selected using a statistical approach, which considers the retention factor, efficiency and peak shape of the analytes measured in only a few mobile phases. The detection was carried out by measuring absorbance at 220 nm. The method was successfully validated in terms of
specificity, calibration range (0.5–10 mg L−1), linearity (r2 > 0.994), limit of detection and quantification (0.2–0.3; and 0.5–0.8 mg L−1, respectively), intra- and interday accuracy (95.2–102.9%), precision (<8.3%),
and ruggedness (<9.3%). The stability in storage conditions (at least 14 days) was studied. The method was safe, inexpensive, produced little pollutant and has a short analysis time, thus it is useful for the routine analysis of samples. Finally, the method was applied to analyse wastewater from the fruit-processing industry, wastewater treatment plants, and in sewage water belonging to the Castelló area (Spain). The
results were similar to those obtained by an already reliable method. [-]
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Analyst (2015), v. 140, issue 5Rights
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info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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