Critical evaluation of third-order advantage with highly overlapped spectral signals. Determination of fluoroquinolones in fish-farming waters by fluorescence spectroscopy coupled to multivariate calibration
TALANTA
| dc.creator | Osorio, Alicia | |
| dc.creator | Toledo-Neira, Carla | |
| dc.creator | Bravo-Mercado, Manuel Andrés | |
| dc.date | 2021-08-23T22:52:59Z | |
| dc.date | 2022-07-08T20:35:44Z | |
| dc.date | 2021-08-23T22:52:59Z | |
| dc.date | 2022-07-08T20:35:44Z | |
| dc.date | 2019 | |
| dc.date.accessioned | 2023-08-21T21:30:22Z | |
| dc.date.available | 2023-08-21T21:30:22Z | |
| dc.identifier | 1150950 | |
| dc.identifier | 1150950 | |
| dc.identifier | https://hdl.handle.net/10533/251073 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8284743 | |
| dc.description | In this work, the analytical performance of a third-order/four-way calibration is evaluated to model a highly overlapped system, where two spectral dimensions are extremely similar, and the results are then compared with the results of second-order/three-way calibration. The four-way data were obtained during the photodegradation of fluoroquinolones (ciprofloxacin, norfloxacin and flumequine) in the form of excitation-emission matrices and modeled by unfolded partial least squares coupled to residual trilinearization (U-PLS-RTL). According to the results, the model obtained with the second-order algorithm (unfolded partial least squares coupled to residual bilinearization: U-PLS-RBL) was unsatisfactory due to high spectral overlap. The third-order approach obtained a satisfactory fit and better figures of merit (LOD, REP, RMSEP, and sensitivity, among others) even in the presence of unexpected interferences due to third-order advantages. Finally, the analytical method based on third-order multivariate calibration was applied to quantify these fluoroquinolones in spiked fish-farming water samples. In this case, the third-order advantage allowed us to satisfactorily model the data and to quantify these compounds in this complex matrix, demonstrating the superior analytical performance of the high-order data that were evaluated. | |
| dc.description | Regular 2015 | |
| dc.description | FONDECYT | |
| dc.description | FONDECYT | |
| dc.language | eng | |
| dc.relation | handle/10533/111557 | |
| dc.relation | handle/10533/111541 | |
| dc.relation | handle/10533/108045 | |
| dc.relation | https://doi.org/10.1016/j.talanta.2019.06.048 | |
| dc.rights | Atribución-NoComercial-SinDerivadas 3.0 Chile | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
| dc.rights | info:eu-repo/semantics/article | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.title | Critical evaluation of third-order advantage with highly overlapped spectral signals. Determination of fluoroquinolones in fish-farming waters by fluorescence spectroscopy coupled to multivariate calibration | |
| dc.title | TALANTA | |
| dc.type | Articulo | |
| dc.type | info:eu-repo/semantics/publishedVersion |