Carbon Nanohorn Suprastructures on a Paper Support as a Sorptive Phase
Departamento de Química Analítica, Instituto Universitario de Investigación en Química Fina y Nanoquímica IUIQFN, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie (anexo), E-14071 Córdoba, Spain
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Academic Editor: Victoria F. Samanidou
Molecules 2018, 23(6), 1252; https://doi.org/10.3390/molecules23061252
Received: 3 May 2018
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Revised: 21 May 2018
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Accepted: 22 May 2018
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Published: 24 May 2018
(This article belongs to the Special Issue Solid Phase Extraction: State of the Art and Future Perspectives)
This article describes a method for the modification of paper with single-wall carbon nanohorns (SWCNHs) to form stable suprastructures. The SWCNHs form stable dahlia-like aggregates in solution that are then self-assembled into superior structures if the solvent is evaporated. Dipping paper sections into a dispersion of SWCNHs leads to the formation of a thin film that can be used for microextraction purposes. The coated paper can be easily handled with a simple pipette tip, paving the way for disposable extraction units. As a proof of concept, the extraction of antidepressants from urine and their determination by direct infusion mass spectrometry is studied. Limits of detection (LODs) were 10 ng/L for desipramine, amitriptyline, and mianserin, while the precision, expressed as a relative standard deviation, was 7.2%, 7.3%, and 9.8%, respectively.
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Keywords:
carbon nanohorns; sorptive phase; paper; microextraction; antidepressants
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
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MDPI and ACS Style
Ríos-Gómez, J.; Fresco-Cala, B.; García-Valverde, M.T.; Lucena, R.; Cárdenas, S. Carbon Nanohorn Suprastructures on a Paper Support as a Sorptive Phase. Molecules 2018, 23, 1252. https://doi.org/10.3390/molecules23061252
AMA Style
Ríos-Gómez J, Fresco-Cala B, García-Valverde MT, Lucena R, Cárdenas S. Carbon Nanohorn Suprastructures on a Paper Support as a Sorptive Phase. Molecules. 2018; 23(6):1252. https://doi.org/10.3390/molecules23061252
Chicago/Turabian StyleRíos-Gómez, Julia, Beatriz Fresco-Cala, María T. García-Valverde, Rafael Lucena, and Soledad Cárdenas. 2018. "Carbon Nanohorn Suprastructures on a Paper Support as a Sorptive Phase" Molecules 23, no. 6: 1252. https://doi.org/10.3390/molecules23061252
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