Please use this identifier to cite or link to this item: https://repositorio.uca.edu.ar/handle/123456789/9628
Título : Simultaneous determination of pesticides in fruits by using second-order fluorescence data resolved by unfolded partial least-squares coupled to residual bilinearization
Autor : Villar Navarro, Mercedes 
Cabezón, Miguel Ángel 
Damiani, Patricia C. 
Palabras clave : FRUTASPESTICIDASNARANJABANANOPLATANO
Fecha de publicación : 2018
Editorial : Hindawi
Cita : Villar Navarro, M., Cabezón, M.N., Damiani, P.C. Simultaneous determination of pesticides in fruits by using second-order fluorescence data resolved by unfolded partial least-squares coupled to residual bilinearization [en línea]. Journal of Chemistry. 2018. doi:10.1155/2018/3217465 Disponoible en: https://repositorio.uca.edu.ar/handle/123456789/9628
Resumen : Abstract: In the present work, a chemometric-assisted spectrofluorimetric method has been developed for the simultaneous determination of natural fluorescent pesticides, carbaryl, carbendazim, and thiabendazole, in orange and banana. Only a simple extraction with methanol was required as sample pretreatment. Emission-excitation fluorescence matrices were obtained and resolved by using a second-order multivariate calibration method based on unfolded partial least-squares combined with residual bilinearization (U-PLS/RBL) for achieving “second-order advantage.” In this way, pesticides were determined in fruits even in the presence of inner filter effects, background interactions, strong spectral overlapping, and unexpected components. U-PLS can cope with effects that cause trilinearity loss such as, inner filter effects, including background in the calibration set; meanwhile, RBL allows to resolve the presence of unexpected components. /e extraction technique was validated against a commonly applied technique based on the use of ethyl acetate and sodium sulfate. Besides, results obtained for real samples were statistically compared with those obtained by using HPLC. LODs of 0.038, 0.054, and 0.018 mg·kg−1 and 0.044, 0.072, and 0.020 mg·kg−1 were obtained for carbaryl, carbendazim, and thiabendazole in banana and orange samples, respectively; values were in accordance with the MRLs (Maximum Residue Limits) established by different official control organizations such as National Food Safety and Quality Service (SENASA), Codex Alimentarius (based on Food and Agriculture Organization (FAO) of the United Nations and World Health Organization (WHO), and Environmental Protection Agency (EPA).
URI : https://repositorio.uca.edu.ar/handle/123456789/9628
ISSN : 2090-9063 (impreso)
2090-9071 (online)
Disciplina: QUIMICA
DOI: 10.1155/2018/3217465
Derechos: Acceso abierto
Appears in Collections:Artículos

Files in This Item:
File Description SizeFormat
simultaneous-determination-pesticides-fruits.pdf5,61 MBAdobe PDFThumbnail
View/Open
Show full item record

Page view(s)

34
checked on Mar 8, 2021

Download(s)

23
checked on Mar 8, 2021

Google ScholarTM

Check


Altmetric


This item is licensed under a Creative Commons License Creative Commons