Simultaneous determination of pesticides in fruits by using second-order fluorescence data resolved by unfolded partial least-squares coupled to residual bilinearization

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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....

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Autores principales:	Villar Navarro, Mercedes, Cabezón, Miguel Angel, Damiani, Patricia Cecilia
Formato:	Publicada
Lenguaje:	Inglés
Publicado:	Hindawi 2020
Materias:	Pesticides in fruits Simultaneous determination Natural fluorescent pesticides Spectrofluorimetric methods Orange Banana
Acceso en línea:	http://hdl.handle.net/2133/19490 http://hdl.handle.net/2133/19490
Aporte de:	Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR) de Universidad Nacional de Rosario

id	I15-R121-2133-19490
record_format	dspace
institution	Universidad Nacional de Rosario
institution_str	I-15
repository_str	R-121
collection	Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR)
language	Inglés
orig_language_str_mv	eng
topic	Pesticides in fruits Simultaneous determination Natural fluorescent pesticides Spectrofluorimetric methods Orange Banana
spellingShingle	Pesticides in fruits Simultaneous determination Natural fluorescent pesticides Spectrofluorimetric methods Orange Banana Villar Navarro, Mercedes Cabezón, Miguel Angel Damiani, Patricia Cecilia Simultaneous determination of pesticides in fruits by using second-order fluorescence data resolved by unfolded partial least-squares coupled to residual bilinearization
topic_facet	Pesticides in fruits Simultaneous determination Natural fluorescent pesticides Spectrofluorimetric methods Orange Banana
description	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. The 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).
format	Publicada
author	Villar Navarro, Mercedes Cabezón, Miguel Angel Damiani, Patricia Cecilia
author_facet	Villar Navarro, Mercedes Cabezón, Miguel Angel Damiani, Patricia Cecilia
author_sort	Villar Navarro, Mercedes
title	Simultaneous determination of pesticides in fruits by using second-order fluorescence data resolved by unfolded partial least-squares coupled to residual bilinearization
title_short	Simultaneous determination of pesticides in fruits by using second-order fluorescence data resolved by unfolded partial least-squares coupled to residual bilinearization
title_full	Simultaneous determination of pesticides in fruits by using second-order fluorescence data resolved by unfolded partial least-squares coupled to residual bilinearization
title_fullStr	Simultaneous determination of pesticides in fruits by using second-order fluorescence data resolved by unfolded partial least-squares coupled to residual bilinearization
title_full_unstemmed	Simultaneous determination of pesticides in fruits by using second-order fluorescence data resolved by unfolded partial least-squares coupled to residual bilinearization
title_sort	simultaneous determination of pesticides in fruits by using second-order fluorescence data resolved by unfolded partial least-squares coupled to residual bilinearization
publisher	Hindawi
publishDate	2020
url	http://hdl.handle.net/2133/19490 http://hdl.handle.net/2133/19490
work_keys_str_mv	AT villarnavarromercedes simultaneousdeterminationofpesticidesinfruitsbyusingsecondorderfluorescencedataresolvedbyunfoldedpartialleastsquarescoupledtoresidualbilinearization AT cabezonmiguelangel simultaneousdeterminationofpesticidesinfruitsbyusingsecondorderfluorescencedataresolvedbyunfoldedpartialleastsquarescoupledtoresidualbilinearization AT damianipatriciacecilia simultaneousdeterminationofpesticidesinfruitsbyusingsecondorderfluorescencedataresolvedbyunfoldedpartialleastsquarescoupledtoresidualbilinearization
bdutipo_str	Repositorios
_version_	1764820410887569410

Simultaneous determination of pesticides in fruits by using second-order fluorescence data resolved by unfolded partial least-squares coupled to residual bilinearization

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