On-line generation of third-order liquid chromatography–excitation-emission fluorescence matrix data. Quantitation of heavy-polycyclic aromatic hydrocarbons
For the first time, third-order liquid chromatography with excitation-emission fluorescence matrix detection (LC-EEFM) data were generated on-line and chemometrically processed for the simultaneous quantitation of the heavy-polycyclic aromatic hydrocarbons fluoranthene, pyrene, benz[a]anthracene, ch...
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Autores principales: | , , |
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Lenguaje: | Inglés |
Publicado: |
Elsevier
2019
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Materias: | |
Acceso en línea: | http://hdl.handle.net/2133/13923 http://hdl.handle.net/2133/13923 |
Aporte de: |
id |
I15-R121-2133-13923 |
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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 |
Liquid chromatography-excitation-emission fluorescence Third-order/four-way calibration Third-order advantage Heavy-polycyclic aromatic hydrocarbons |
spellingShingle |
Liquid chromatography-excitation-emission fluorescence Third-order/four-way calibration Third-order advantage Heavy-polycyclic aromatic hydrocarbons Carabajal, Maira Daniela Arancibia, Juan Alberto Escandar, Graciela Mónica On-line generation of third-order liquid chromatography–excitation-emission fluorescence matrix data. Quantitation of heavy-polycyclic aromatic hydrocarbons |
topic_facet |
Liquid chromatography-excitation-emission fluorescence Third-order/four-way calibration Third-order advantage Heavy-polycyclic aromatic hydrocarbons |
description |
For the first time, third-order liquid chromatography with excitation-emission fluorescence matrix detection (LC-EEFM) data were generated on-line and chemometrically processed for the simultaneous quantitation of the heavy-polycyclic aromatic hydrocarbons fluoranthene, pyrene, benz[a]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, and dibenz[a,h]anthracene. The applied experimental strategy is very simple, and is based on the reduction of the linear flow rate by fitting a larger diameter connecting-tube between the column outlet and the fluorimetric detector. In this way, EEFMs were successfully recorded on-line, without involving a large total analysis time. Because in the studied system quadrilinearity was fulfilled, four-way parallel factor (PARAFAC) analysis was applied for data processing. The second-order advantage, which is an intrinsic property of data of at least second-order, allowed the quantification of the analytes in interfering media. Moreover, resolution of the system with a high degree of collinearity was achieved thanks to the third-order advantage. In addition to a selectivity improvement, third-order/four-way calibration increased the sensitivity, with limits of detection in the range of 0.4 − 2.9 ng mL−1. After a solid-phase extraction procedure with C18 membranes, considerably lower concentrations (between 0.033–2.70 ng mL−1) were determined in real waters, with most recoveries in the range 90–106%. |
author |
Carabajal, Maira Daniela Arancibia, Juan Alberto Escandar, Graciela Mónica |
author_facet |
Carabajal, Maira Daniela Arancibia, Juan Alberto Escandar, Graciela Mónica |
author_sort |
Carabajal, Maira Daniela |
title |
On-line generation of third-order liquid chromatography–excitation-emission fluorescence matrix data. Quantitation of heavy-polycyclic aromatic hydrocarbons |
title_short |
On-line generation of third-order liquid chromatography–excitation-emission fluorescence matrix data. Quantitation of heavy-polycyclic aromatic hydrocarbons |
title_full |
On-line generation of third-order liquid chromatography–excitation-emission fluorescence matrix data. Quantitation of heavy-polycyclic aromatic hydrocarbons |
title_fullStr |
On-line generation of third-order liquid chromatography–excitation-emission fluorescence matrix data. Quantitation of heavy-polycyclic aromatic hydrocarbons |
title_full_unstemmed |
On-line generation of third-order liquid chromatography–excitation-emission fluorescence matrix data. Quantitation of heavy-polycyclic aromatic hydrocarbons |
title_sort |
on-line generation of third-order liquid chromatography–excitation-emission fluorescence matrix data. quantitation of heavy-polycyclic aromatic hydrocarbons |
publisher |
Elsevier |
publishDate |
2019 |
url |
http://hdl.handle.net/2133/13923 http://hdl.handle.net/2133/13923 |
work_keys_str_mv |
AT carabajalmairadaniela onlinegenerationofthirdorderliquidchromatographyexcitationemissionfluorescencematrixdataquantitationofheavypolycyclicaromatichydrocarbons AT arancibiajuanalberto onlinegenerationofthirdorderliquidchromatographyexcitationemissionfluorescencematrixdataquantitationofheavypolycyclicaromatichydrocarbons AT escandargracielamonica onlinegenerationofthirdorderliquidchromatographyexcitationemissionfluorescencematrixdataquantitationofheavypolycyclicaromatichydrocarbons |
bdutipo_str |
Repositorios |
_version_ |
1764820408035442688 |