Development and validation of a solid–liquid extraction with low-temperature partitioning method for the determination of fipronil in turtle eggshell

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Autor(es): dc.contributorUniversidade Federal de Uberlândia (UFU)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorAmbrosio, Isabela S.-
Autor(es): dc.creatorOtaviano, Cinthia M.-
Autor(es): dc.creatorCastilho, Lais M.B.-
Autor(es): dc.creatorSantos, Allyson L.R.-
Autor(es): dc.creatorMendonça, Juliana S.-
Autor(es): dc.creatorFaria, Anizio M.-
Data de aceite: dc.date.accessioned2025-08-21T20:07:28Z-
Data de disponibilização: dc.date.available2025-08-21T20:07:28Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.microc.2022.107393-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/223666-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/223666-
Descrição: dc.descriptionThe intense use of fipronil in sugarcane crops in Brazil in regions close to the spawning areas of freshwater turtles may pose a considerable threat to the reproduction of these organisms. Therefore, the development and validation of a method to quantify the fipronil contamination in turtle eggshells is pressing and constitutes the main goal of the present study. The proposed method was based on solid–liquid extraction with low-temperature partitioning, reducing its scale due to the limited availability of turtle eggshell samples. The fipronil extraction from eggshell samples was optimized using a statistical design based on the Doehlert Matrix. Eggshell mass, the volume of extraction solvent, and the freezing time were the optimized method parameters, yielding fipronil recoveries close to 100% without a clean-up step. Furthermore, the optimized method was linear, robust, precise, and accurate in the fipronil concentration range of 8.4–1,818.0 µg kg−1. The limit of quantification for fipronil was 8.37 µg kg−1, about 2.5 times lower than the maximum residual limit for fipronil in eggs. Residues of fipronil were detected and quantified successfully in amazon-turtle eggshell samples using the proposed method. In conclusion, the one-step SLE-LTP method was mini-scaled for the first time and presented a strong potential for monitoring fipronil residues in freshwater turtle eggshells.-
Descrição: dc.descriptionInstitute of Exact and Natural Sciences of Pontal Federal University of Uberlândia, MG-
Descrição: dc.descriptionInstitute of Biosciences São Paulo State University, SP-
Descrição: dc.descriptionInstitute of Biosciences São Paulo State University, SP-
Idioma: dc.languageen-
Relação: dc.relationMicrochemical Journal-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAmazon turtle-
Palavras-chave: dc.subjectDoehlert Matrix-
Palavras-chave: dc.subjectHPLC-
Palavras-chave: dc.subjectInsecticide-
Palavras-chave: dc.subjectSample preparation-
Título: dc.titleDevelopment and validation of a solid–liquid extraction with low-temperature partitioning method for the determination of fipronil in turtle eggshell-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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