Molecularly imprinted core-shell magnetic nanoparticles for selective extraction of triazines in soils
In this work, a propazine-imprinted polymer was synthesized on the surface of modified magnetic nanoparticles to be used in the solid-phase extraction of triazines in soil samples. The effect of different solvents on the selective extraction of target analytes was assessed to establish the optimum rebinding conditions. The obtained magnetic molecularly imprinted particles exhibited high selectivity for triazines and were easily collected and separated by an external magnetic field without additional centrifugation or filtration steps. Under optimum conditions, a magnetic molecularly imprinted solid-phase extraction method was developed allowing the extraction of several triazines (desisopropylatrazine, desethylatrazine, simazine, atrazine, and propazine) from soil samples and their subsequent final determination by high-performance liquid chromatography with diode-array detection. Recoveries for the triazines studied were within the range 5.4% to 40.6%, with relative standard deviations lower than 7.0% (n = 3). The detection limits were within 0.1 to 3 ng g−1, depending upon the triazine and the type of soil used. Copyright © 2016 John Wiley & Sons, Ltd.
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Format: | artículo biblioteca |
Language: | English |
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Wiley
2017
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Subjects: | Magnetic nanoparticles, Molecularly imprinted polymers, Soils, Solid‐phase extraction, Triazines, |
Online Access: | http://hdl.handle.net/20.500.12792/3353 http://hdl.handle.net/10261/292334 |
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dig-inia-es-10261-2923342023-02-20T07:27:53Z Molecularly imprinted core-shell magnetic nanoparticles for selective extraction of triazines in soils Patiño Ropero, María José Díaz Álvarez, Miriam Martín Esteban, Antonio Magnetic nanoparticles Molecularly imprinted polymers Soils Solid‐phase extraction Triazines In this work, a propazine-imprinted polymer was synthesized on the surface of modified magnetic nanoparticles to be used in the solid-phase extraction of triazines in soil samples. The effect of different solvents on the selective extraction of target analytes was assessed to establish the optimum rebinding conditions. The obtained magnetic molecularly imprinted particles exhibited high selectivity for triazines and were easily collected and separated by an external magnetic field without additional centrifugation or filtration steps. Under optimum conditions, a magnetic molecularly imprinted solid-phase extraction method was developed allowing the extraction of several triazines (desisopropylatrazine, desethylatrazine, simazine, atrazine, and propazine) from soil samples and their subsequent final determination by high-performance liquid chromatography with diode-array detection. Recoveries for the triazines studied were within the range 5.4% to 40.6%, with relative standard deviations lower than 7.0% (n = 3). The detection limits were within 0.1 to 3 ng g−1, depending upon the triazine and the type of soil used. Copyright © 2016 John Wiley & Sons, Ltd. 2023-02-20T07:27:53Z 2023-02-20T07:27:53Z 2017 artículo Jounral of Molecular Recognition 30: e2593 (2017) 0952-3499 http://hdl.handle.net/20.500.12792/3353 http://hdl.handle.net/10261/292334 10.1002/jmr.2593 1099-1352 en none Wiley |
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Magnetic nanoparticles Molecularly imprinted polymers Soils Solid‐phase extraction Triazines Magnetic nanoparticles Molecularly imprinted polymers Soils Solid‐phase extraction Triazines |
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Magnetic nanoparticles Molecularly imprinted polymers Soils Solid‐phase extraction Triazines Magnetic nanoparticles Molecularly imprinted polymers Soils Solid‐phase extraction Triazines Patiño Ropero, María José Díaz Álvarez, Miriam Martín Esteban, Antonio Molecularly imprinted core-shell magnetic nanoparticles for selective extraction of triazines in soils |
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In this work, a propazine-imprinted polymer was synthesized on the surface of modified magnetic nanoparticles to be used in the solid-phase extraction of triazines in soil samples. The effect of different solvents on the selective extraction of target analytes was assessed to establish the optimum rebinding conditions. The obtained magnetic molecularly imprinted particles exhibited high selectivity for triazines and were easily collected and separated by an external magnetic field without additional centrifugation or filtration steps. Under optimum conditions, a magnetic molecularly imprinted solid-phase extraction method was developed allowing the extraction of several triazines (desisopropylatrazine, desethylatrazine, simazine, atrazine, and propazine) from soil samples and their subsequent final determination by high-performance liquid chromatography with diode-array detection. Recoveries for the triazines studied were within the range 5.4% to 40.6%, with relative standard deviations lower than 7.0% (n = 3). The detection limits were within 0.1 to 3 ng g−1, depending upon the triazine and the type of soil used. Copyright © 2016 John Wiley & Sons, Ltd. |
format |
artículo |
topic_facet |
Magnetic nanoparticles Molecularly imprinted polymers Soils Solid‐phase extraction Triazines |
author |
Patiño Ropero, María José Díaz Álvarez, Miriam Martín Esteban, Antonio |
author_facet |
Patiño Ropero, María José Díaz Álvarez, Miriam Martín Esteban, Antonio |
author_sort |
Patiño Ropero, María José |
title |
Molecularly imprinted core-shell magnetic nanoparticles for selective extraction of triazines in soils |
title_short |
Molecularly imprinted core-shell magnetic nanoparticles for selective extraction of triazines in soils |
title_full |
Molecularly imprinted core-shell magnetic nanoparticles for selective extraction of triazines in soils |
title_fullStr |
Molecularly imprinted core-shell magnetic nanoparticles for selective extraction of triazines in soils |
title_full_unstemmed |
Molecularly imprinted core-shell magnetic nanoparticles for selective extraction of triazines in soils |
title_sort |
molecularly imprinted core-shell magnetic nanoparticles for selective extraction of triazines in soils |
publisher |
Wiley |
publishDate |
2017 |
url |
http://hdl.handle.net/20.500.12792/3353 http://hdl.handle.net/10261/292334 |
work_keys_str_mv |
AT patinoroperomariajose molecularlyimprintedcoreshellmagneticnanoparticlesforselectiveextractionoftriazinesinsoils AT diazalvarezmiriam molecularlyimprintedcoreshellmagneticnanoparticlesforselectiveextractionoftriazinesinsoils AT martinestebanantonio molecularlyimprintedcoreshellmagneticnanoparticlesforselectiveextractionoftriazinesinsoils |
_version_ |
1767603330912092160 |