2026-08-20T03:47:17Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/50582021-11-10T09:38:26Zcom_10259_4249com_10259_5086com_10259_2604col_10259_4250

Sanllorente Méndez, Silvia Rubio Martínez, Laura Ortiz Fernández, Mª Cruz Sarabia Peinador, Luis Antonio 2019-02-21T09:30:06Z 2019-04 2021-04-15 0925-4005 http://hdl.handle.net/10259/5058 10.1016/j.snb.2019.01.051 In this work, the transfer of the excitation-emission matrices between a portable fluorimeter based on LEDs and a master fluorimeter based on a xenon source was carried out. Enrofloxacin was the analyte of interest and it was measured alone or in binary mixtures with flumequine (partially overlapped signals) or with ciprofloxacin (fully overlapped signals). The maintenance and transfer of the unequivocal identification of the fluorophores between both instruments are shown. The precision in the determination performed with the portable fluorimeter approximated to that made with the master fluorimeter using this transfer and it did not introduce bias. The correlation coefficients of the calibrations based on PARAFAC using EEM signals were higher than 0.999, whereas the values of the capability of detection ranged from 14.8 to 26.9 μg L−1 for probabilities of false positive and false negative fixed at 0.05. These results contribute to the effort to perform the fluorimetric detection outside the laboratory and to promote the use of databases of fluorescence spectra for the unequivocal identification in remote of fluorophores of interest and/or regulated. Spanish MINECO (AEI/FEDER, UE) through projects CTQ2014-53157-R and CTQ2017‐88894‐R and by Junta de Castilla y León through project BU012P17 (all co‐financed with European FEDER funds) application/pdf eng Elsevier Sensors and Actuators B: Chemical. 2019, V. 285, p. 240-247 https://doi.org/10.1016/j.snb.2019.01.051 info:eu-repo/grantAgreement/MINECO/CTQ2014-53157-R info:eu-repo/grantAgreement/MINECO/CTQ2017‐88894‐R info:eu-repo/grantAgreement/JCyL/BU012P17 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Signal transfer Portable fluorimeter Excitation-emission fluorescence PARAFAC Capability of detection Enrofloxacin Química analítica Chemistry, Analytic Signal transfer with excitation-emission matrices between a portable fluorimeter based on light-emitting diodes and a master fluorimeter info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion