title: Incorporation of zeolitic imidazolate framework (ZIF-8)-derived nanoporous carbons in methacrylate polymeric monoliths for capillary electrochromatography.
abstract: A series of metal organic frameworks-derived nanoporous carbons originating from zeolitic imidazolate framework-8 (ZIF-8) crystals as precursors have been prepared via varying the preparation conditions. The ZIF-8-derived carbons were subsequently admixed in the methacrylate monomers containing polymerization mixtures and polymerized to obtain monolithic columns for capillary electrochromatography (CEC). The effect of particle size and content of the ZIF-8-derived carbon materials in the polymerization mixture on the performance of the hybrid monolithic columns was investigated in detail. The resulting composites were characterized using scanning electron microscopy. Using short time UV-initiated polymerization, monolithic beds with homogenously dispersed ZIF-8-derived carbons were obtained. The chromatographic performance of these composites was demonstrated with separations of polycyclic aromatic hydrocarbons and non-steroidal anti-inflammatory drugs as test solutes. The incorporation of the ZIF-8-derived carbons into the organic polymer monoliths led to an increase in the retention of all the analytes compared to the parent monolith. Finally, the hybrid monolithic columns exhibited satisfactory run-to-run and batch-to-batch reproducibility.
authors.affiliation: Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain.
authors.forename: Enrique Javier
authors.initials: EJ
authors.lastname: Carrasco-Correa
authors.affiliation: Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain.
authors.forename: Andrea
authors.initials: A
authors.lastname: Martínez-Vilata
authors.affiliation: Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain. Electronic address: jmherrer@uv.es.
authors.forename: José Manuel
authors.initials: JM
authors.lastname: Herrero-Martínez
authors.affiliation: Instituto Nacional del Carbon, INCAR-CSIC. P.O. 73, 33080 Oviedo, Spain.
authors.forename: José B
authors.initials: JB
authors.lastname: Parra
authors.affiliation: Department of Chemistry, University of the Balearic Islands, Cra. Valldemossa km 7.5, 07122 Palma de Mallorca, Spain.
authors.forename: Fernando
authors.initials: F
authors.lastname: Maya
authors.affiliation: Department of Chemistry, University of the Balearic Islands, Cra. Valldemossa km 7.5, 07122 Palma de Mallorca, Spain.
authors.forename: Victor
authors.initials: V
authors.lastname: Cerdà
authors.affiliation: Department of Chemistry, University of the Balearic Islands, Cra. Valldemossa km 7.5, 07122 Palma de Mallorca, Spain.
authors.forename: Carlos Palomino
authors.initials: CP
authors.lastname: Cabello
authors.affiliation: Department of Chemistry, University of the Balearic Islands, Cra. Valldemossa km 7.5, 07122 Palma de Mallorca, Spain.
authors.forename: Gemma Turnes
authors.initials: GT
authors.lastname: Palomino
authors.affiliation: Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Frantisek
authors.initials: F
authors.lastname: Svec
keywords: Capillary electrochromatography; Metal-organic frameworks; Nanoporous carbons; Organic polymer monoliths; UV initiation; Zeolitic imidazolate frameworks