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...
Guardado en:
| 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 |
|---|---|
| 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 |