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- W2024934511 abstract "A novel solid phase extraction microchip with a boronic acid functional affinity monolithic disc was developed in this work. Vinyl phenylboronic acid–ethylene glycol dimethacrylate co-polymer monoliths, which have pore sizes up to 20 μm, were investigated for extraction of catecholamines using adsorption and desorption studies in a batch system. Desorption yields of greater than 90% were achieved for catecholamines at pH 3 and below. Monolithic discs were then formed in chambers in borofloat glass microfluidic chips using in situ UV polymerization. Adsorption on the monolithic discs was performed via electrokinetic flow, with catecholamines determined via laser-induced native fluorescence (LINF) detection following electrokinetic elution. Microchips containing the boronic acid functional polymer discs worked well for extraction of catecholamines, providing greater than 100 fold concentration enrichment. This study demonstrated that a solid phase extraction microchip, containing an easily prepared monolith disc, will be useful for boronate affinity extraction of cis-diol containing compounds." @default.
- W2024934511 created "2016-06-24" @default.
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- W2024934511 date "2011-03-01" @default.
- W2024934511 modified "2023-10-18" @default.
- W2024934511 title "Microchip extraction of catecholamines using a boronic acid functional affinity monolith" @default.
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- W2024934511 doi "https://doi.org/10.1016/j.aca.2011.02.009" @default.
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