Solid-surface fluorescent properties of estrogens: Green analytical applications

For the first time, the fluorescent signals produced by 17β-estradiol (E2), estradiol valerate (E2V) and 17α-ethinylestradiol (EE2) were investigated after being retained in selected solid surfaces. Among different studied supports, both C18 and nylon membranes demonstrated to have been able to indu...

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Detalles Bibliográficos
Autores principales: Pérez, Rocío Laura, Escandar, Graciela Mónica
Lenguaje:Inglés
Publicado: Elsevier 2019
Materias:
Solid-surface Spectrofluorimetry
C18 Membranes
Nylon Membranes
Second-order Calibration
Endocrine Disruptors
Acceso en línea:http://hdl.handle.net/2133/13880
http://hdl.handle.net/2133/13880
Aporte de:
Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR) de Universidad Nacional de Rosario
id I15-R121-2133-13880
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 Solid-surface Spectrofluorimetry
C18 Membranes
Nylon Membranes
Second-order Calibration
Endocrine Disruptors
spellingShingle Solid-surface Spectrofluorimetry
C18 Membranes
Nylon Membranes
Second-order Calibration
Endocrine Disruptors
Pérez, Rocío Laura
Escandar, Graciela Mónica
Solid-surface fluorescent properties of estrogens: Green analytical applications
topic_facet Solid-surface Spectrofluorimetry
C18 Membranes
Nylon Membranes
Second-order Calibration
Endocrine Disruptors
description For the first time, the fluorescent signals produced by 17β-estradiol (E2), estradiol valerate (E2V) and 17α-ethinylestradiol (EE2) were investigated after being retained in selected solid surfaces. Among different studied supports, both C18 and nylon membranes demonstrated to have been able to induce intense signals over their surface, after aqueous solutions of the analytes were retained via a solid-phase extraction procedure. Physicochemical variables which affect the quality of the fluorescence signals were optimized, and the results obtained in the studied solid supports were compared and discussed. While nylon successfully faced the trouble of spectrofluorimetrically quantifying estrogens in pharmaceuticals with unbalanced estrogen/progestagen ratios, C18 membranes showed very good qualities for second-order spectrofluorimeric measurements, allowing the determination of E2 (the most active estrogen) in potentially contaminated fish and chicken samples. The fluorescence excitation–emission matrices, directly measured on a C18 surface, were processed using appropriate chemometric algorithms in order to efficiently quantify E2 in the presence of natural matrix constituents. The present strategy avoids the elution step, considerably decreasing the use of organic solvents, the analysis time and the experimental errors. In addition, the instrumental involved is nonsophisticated and, therefore, the experiments could be carried out in routine laboratories.
author Pérez, Rocío Laura
Escandar, Graciela Mónica
author_facet Pérez, Rocío Laura
Escandar, Graciela Mónica
author_sort Pérez, Rocío Laura
title Solid-surface fluorescent properties of estrogens: Green analytical applications
title_short Solid-surface fluorescent properties of estrogens: Green analytical applications
title_full Solid-surface fluorescent properties of estrogens: Green analytical applications
title_fullStr Solid-surface fluorescent properties of estrogens: Green analytical applications
title_full_unstemmed Solid-surface fluorescent properties of estrogens: Green analytical applications
title_sort solid-surface fluorescent properties of estrogens: green analytical applications
publisher Elsevier
publishDate 2019
url http://hdl.handle.net/2133/13880
http://hdl.handle.net/2133/13880
work_keys_str_mv AT perezrociolaura solidsurfacefluorescentpropertiesofestrogensgreenanalyticalapplications
AT escandargracielamonica solidsurfacefluorescentpropertiesofestrogensgreenanalyticalapplications
bdutipo_str Repositorios
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