Comparison of green sample preparation techniques in the analysis of pyrethrins and pyrethroids in baby food by liquid chromatography–tandem mass spectrometry
| Autor: | Yolanda Picó, Mateus Henrique Petrarca, Ana Masiá, Alexander Ccanccapa-Cartagena, Helena Teixeira Godoy |
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| Přispěvatelé: | Ministerio de Economía y Competitividad (España), European Commission, Universidad de Valencia, Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Picó, Yolanda, Picó, Yolanda [0000-0002-9545-0965] |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Insecticides
Analyte Maximum Residue Limit Liquid-Liquid Extraction Food Contamination 010402 general chemistry 01 natural sciences Biochemistry Analytical Chemistry Matrix (chemical analysis) Baby food chemistry.chemical_compound LC–MS/MS Tandem Mass Spectrometry Liquid chromatography–mass spectrometry Etofenprox Nitriles Pyrethrins Animals Humans Sample preparation Pesticides Food contaminants Chromatography Chemistry 010401 analytical chemistry Organic Chemistry Infant Green Chemistry Technology General Medicine 0104 chemical sciences Milk UA-DLLME Green chemistry Fruit Solvents Infant Food Edible Grain Enrichment factor Baby foods Chromatography Liquid |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | A new selective and sensitive liquid chromatography triple quadrupole mass spectrometry method was developed for simultaneous analysis of natural pyrethrins and synthetic pyrethroids residues in baby food. In this study, two sample preparation methods based on ultrasound-assisted dispersive liquid–liquid microextraction (UA-DLLME) and salting-out assisted liquid–liquid extraction (SALLE) were optimized, and then, compared regarding the performance criteria. Appropriate linearity in solvent and matrix-based calibrations, and suitable recoveries (75–120%) and precision (RSD values ≤ 16%) were achieved for selected analytes by any of the sample preparation procedures. Both methods provided the analytical selectivity required for the monitoring of the insecticides in fruit-, cereal- and milk-based baby foods. SALLE, recognized by cost-effectiveness, and simple and fast execution, provided a lower enrichment factor, consequently, higher limits of quantification (LOQs) were obtained. Some of them too high to meet the strict legislation regarding baby food. Nonetheless, the combination of ultrasound and DLLME also resulted in a high sample throughput and environmental-friendly method, whose LOQs were lower than the default maximum residue limit (MRL) of 10 μg kg−1 set by European Community for baby foods. In the commercial baby foods analyzed, cyhalothrin and etofenprox were detected in different samples, demonstrating the suitability of proposed method for baby food control. M.H. Petrarca and H.T. Godoy are grateful to CNPq – National Council for Scientific and Technological Development, for financial support and for the scholarship awarded to the first author (Process n° 140271/2013-9). This work has been co-supported by the Spanish Ministry of Economy and Competitiveness and the ERDF (European Regional Development Fund) through the project CGL2015-64454-C2-1-R as well as by the University of Valencia through the project UV-INV-AE15-348995. |
| Databáze: | OpenAIRE |
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