A new coaxial flow-through probe for electromembrane extraction of methadone from clinical samples on-line coupled to capillary electrophoresis von Opekar, František, Tůma, Petr

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Capillary and microchip electrophoresis with contactless conductivity detection for analysis of foodstuffs and beverages von Tůma, Petr, Opekar, František, Dlouhý, Pavel

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A new electromembrane extraction probe for on-line connection with capillary electrophoresis for determination of substances in biological matrices von Opekar, František, Tůma, Petr

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Direct sample injection from a syringe needle into a separation capillary von Opekar, František, Tůma, Petr

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Electromembrane extraction of anesthetic ketamine on-line coupled to capillary electrophoresis von Opekar, František, Tůma, Petr

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Dialysis of one sample drop on-line connected with electrophoresis in short capillary von Opekar, František, Tůma, Petr

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Characterization of various geometric arrangements of “air‐assisted” flow gating interfaces for capillary electrophoresis von Opekar, František, Tůma, Petr

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An air‐assisted flow‐gating interface for capillary electrophoresis von Opekar, František, Tůma, Petr

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Hydrodynamic sample injection into short electrophoretic capillary in systems with a flow-gating interface von Opekar, František, Tůma, Petr

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Rapid determination of majority cations in yoghurts using on-line connection of capillary electrophoresis with mini-dialysis von Opekar, František, Hraníček, Jakub, Tůma, Petr

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Dual-channel capillary electrophoresis for simultaneous determination of cations and anions von Opekar, František, Tůma, Petr

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Coaxial flow‐gating interface for capillary electrophoresis von Opekar, František, Tůma, Petr

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A simple impedance tester for determining the water content in organic solvents von Opekar, František, Tůma, Petr

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Rapid Capillary Zone Electrophoresis Along Short Separation Pathways and Its Use in Some Hyphenated Systems: A Critical Review von Opekar, František, Coufal, Pavel, Štulík, Karel

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Pressure-assisted introduction of urine samples into a short capillary for electrophoretic separation with contactless conductivity and UV spectrometry detection von Makrlíková, Anna, Opekar, František, Tůma, Petr

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A contactless conductivity detection cell for flow injection analysis: Determination of total inorganic carbon von Hoherčáková, Zuzana, Opekar, František

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Contactless impedance sensors and their application to flow measurements von Opekar, František, Tůma, Petr, Stulík, Karel

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Simultaneous and rapid determination of caffeine and taurine in energy drinks by MEKC in a short capillary with dual contactless conductivity/photometry detection von Vochyánová, Blanka, Opekar, František, Tůma, Petr

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Electrokinetic injection of samples into a short electrophoretic capillary controlled by piezoelectric micropumps von Opekar, František, Nesměrák, Karel, Tůma, Petr

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Ionic liquid―polymer electrolyte for amperometric solid-state NO2 sensor von NADHERNA, Martina, OPEKAR, František, REITER, Jakub

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