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Carbon Nanohorn Suprastructures on a Paper Support as a Sorptive Phase.

ABSTRACT: 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.

SUBMITTER: Rios-Gomez J

PROVIDER: S-EPMC6100432 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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Carbon Nanohorn Suprastructures on a Paper Support as a Sorptive Phase.

Ríos-Gómez Julia J Fresco-Cala Beatriz B García-Valverde María Teresa MT Lucena Rafael R Cárdenas Soledad S

Molecules (Basel, Switzerland) 20180524 6

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 ...[more]

PMID: 29794967

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