215 results on '"Opekar, František"'
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2. Electromembrane extraction of anesthetic ketamine on-line coupled to capillary electrophoresis
3. Capillary and microchip electrophoresis with contactless conductivity detection for analysis of foodstuffs and beverages
4. Dialysis of one sample drop on-line connected with electrophoresis in short capillary
5. Direct sample injection from a syringe needle into a separation capillary
6. Hydrodynamic sample injection into short electrophoretic capillary in systems with a flow-gating interface
7. A new electromembrane extraction probe for on-line connection with capillary electrophoresis for determination of substances in biological matrices
8. Dual-channel capillary electrophoresis for simultaneous determination of cations and anions
9. A planar, solid-state amperometric sensor for nitrogen dioxide, employing an ionic liquid electrolyte contained in a polymeric matrix
10. Rapid determinations of saccharides in high-energy drinks by short-capillary electrophoresis with contactless conductivity detection
11. Characterization of various geometric arrangements of “air‐assisted” flow gating interfaces for capillary electrophoresis
12. A contactless conductivity detection cell for flow injection analysis: Determination of total inorganic carbon
13. Au/PVC composite—a new material for solid-state gas sensors: Detection of nitrogen dioxide in the air
14. Improved dual photometric-contactless conductometric detector for capillary electrophoresis
15. Determination of urinary 8-hydroxy-2′-deoxyguanosine in obese patients by HPLC with electrochemical detection
16. An air-assisted flow-gating interface for capillary electrophoresis
17. Effect of gas humidity on the potential of pseudoreference Pt/air electrode in amperometric solid-state gas sensors
18. Characterization of various geometric arrangements of "air‐assisted" flow gating interfaces for capillary electrophoresis.
19. Dual photometric-contactless conductometric detector for capillary electrophoresis
20. Effect of AC voltage frequency on the sensitivity of conductometric detection in microseparation techniques
21. Electrochemical sensors with solid polymer electrolytes
22. An air‐assisted flow‐gating interface for capillary electrophoresis.
23. Electrokinetic injection of samples into a short electrophoretic capillary controlled by piezoelectric micropumps
24. A simple impedance tester for determining the water content in organic solvents
25. Detectors in Capillary Electrophoresis
26. Contactless conductometric determination of methanol and ethanol in samples containing water after their electrophoretic desalination
27. Pressure-assisted introduction of urine samples into a short capillary for electrophoretic separation with contactless conductivity and UV spectrometry detection
28. Coaxial flow-gating interface for capillary electrophoresis.
29. Simultaneous and rapid determination of caffeine and taurine in energy drinks by MEKC in a short capillary with dual contactless conductivity/photometry detection
30. Large-volume sample stacking for in vivo monitoring of trace levels of γ-aminobutyric acid, glycine and glutamate in microdialysates of periaqueductal gray matter by capillary electrophoresis with contactless conductivity detection
31. Contactless Impedance Sensors and Their Application to Flow Measurements
32. The use of a multichannel capillary for electrophoretic separations of mixtures of clinically important substances with contactless conductivity and UV photometric detection
33. Very fast electrophoretic separation on commercial instruments using a combination of two capillaries with different internal diameters
34. Ionic liquid–polymer electrolyte for amperometric solid-state NO2 sensor
35. Some important combinations of detection techniques for electrophoresis in capillaries and on chips with emphasis on electrochemical principles
36. Some Possibilities and Limitations of Contactless Impedimetric Determinations of Organic Liquids in Aqueous Solutions. The Interference from Ionic Compounds
37. Electrochemical Gas Sensors
38. Rapid Capillary Zone Electrophoresis Along Short Separation Pathways and Its Use in Some Hyphenated Systems: A Critical Review
39. Neutral and ionic reaction mechanisms for the allylation of aldehydes by bipyridine N,N′-dioxides
40. A Contactless Impedance Probe for Simple and Rapid Determination of the Ratio of Liquids with Different Permittivities in Binary Mixtures
41. A Comparison of the Properties of Contactless Conductivity and Diode-Array Photometric Detectors in Analyses of Low-Molecular, Biologically Active Substances by Capillary Electrophoresis in Acetic Acid Solutions
42. A dual spectrophotometric/contactless conductivity detector for CE determination of incompletely separated amino acids
43. Properties of the Contactless Impedance Detector with Insulated Wire Electrodes Placed Inside the Flowing Liquid Stream
44. Determination of 1-methylhistidine and 3-methylhistidine by capillary and chip electrophoresis with contactless conductivity detection
45. Renaissance of HF Impedimetry in Application to CE Detection
46. Thinly Insulated Wire Cells – A New Device for Sensitive Contactless Conductivity Detection in Flow Analyses
47. The Effects of the Electrode System Geometry on the Properties of Contactless Conductivity Detectors for Capillary Electrophoresis
48. A contactless conductivity detector for capillary electrophoresis: Effects of the detection cell geometry on the detector performance
49. Amperometric Solid-State Gas Sensors: Materials for Their Active Components
50. Contactless Conductivity Detector for Microchip Capillary Electrophoresis
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