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1

Some important combinations of detection techniques for electrophoresis in capillaries and on chips with emphasis on electrochemical principles

František Opekar, Karel Štulík

Journal:

ELECTROPHORESIS

Year:

2011

Language:

english

File:

PDF, 254 KB

english, 2011

2

A Contactless Conductometric Detector with Easily Exchangeable Capillary for Capillary Electrophoresis

Petr Tůma, František Opekar, Ivan Jelínek

Journal:

Electroanalysis

Year:

2001

Language:

english

File:

PDF, 101 KB

english, 2001

3

Determination of 1-methylhistidine and 3-methylhistidine by capillary and chip electrophoresis with contactless conductivity detection

Petr Tůma, Eva Samcová, František Opekar, Vlastimil Jurka, Karel Štulík

Journal:

ELECTROPHORESIS

Year:

2007

Language:

english

File:

PDF, 340 KB

english, 2007

4

Indicator and reference platinum | solid polymer electrolyte electrodes for a simple solid-state amperometric hydrogen sensor

František Opekar, Jan Langmaier, Zdeněk Samec

Journal:

Journal of Electroanalytical Chemistry

Year:

1994

Language:

english

File:

PDF, 647 KB

english, 1994

5

1,4-Addition of tetraethyl fluoromethylenebisphosphonate to α,β-unsaturated compounds

Stanislav Opekar, Petr Beier

Journal:

Journal of Fluorine Chemistry

Year:

2011

Language:

english

File:

PDF, 480 KB

english, 2011

6

A simple laboratory generator for low concentrations of sulphur dioxide

Jan Langmaier, František Opekar

Journal:

Analytica Chimica Acta

Year:

1985

Language:

english

File:

PDF, 390 KB

english, 1985

7

The use of the rotating disk electrode for measuring the rate of the Fe(II) reaction with tert-butylhydroperoxide and hydrogen peroxide in hydrochloric acid and acrylonitrile medium

František Opekar, Přemysl Beran

Journal:

Journal of Electroanalytical Chemistry and Interfacial Electrochemistry

Year:

1971

Language:

english

File:

PDF, 383 KB

english, 1971

8

Measurement of electrode potentials in electrochemical systems with solid polymer electrolytes against common reference electrodes

Frantiŝek Opekar

Journal:

Sensors and Actuators B: Chemical

Year:

1994

Language:

english

File:

PDF, 345 KB

english, 1994

9

A new route to α-alkyl-α-fluoromethylenebisphosphonates

Beier, Petr, Opekar, Stanislav, Zibinsky, Mikhail, Bychinskaya, Inessa, Prakash, G. K. Surya

Journal:

Organic & Biomolecular Chemistry

Year:

2011

Language:

english

File:

PDF, 154 KB

english, 2011

10

The electrochemical generation of small amounts of hydrogen cyanide

Zuzana Tocksteinová, František Opekar

Journal:

Year:

1986

Language:

english

File:

PDF, 253 KB

english, 1986

11

Conjugate Addition of Diethyl 1-Fluoro-1-phenylsulfonylmethanephosphonate to α,β-Unsaturated Compounds

Opekar, Stanislav, Pohl, Radek, Eigner, Václav, Beier, Petr

Journal:

Journal of Organic Chemistry

Year:

2013

Language:

english

File:

PDF, 587 KB

english, 2013

12

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

Tůma, Petr, Šustková-Fišerová, Magdaléna, Opekar, František, Pavlíček, Václav, Málková, Klára

Journal:

Journal of Chromatography A

Year:

2013

Language:

english

File:

PDF, 1.09 MB

english, 2013

13

Diethyl Fluoronitromethylphosphonate: Synthesis and Application in Nucleophilic Fluoroalkyl Additions

Opekar, Stanislav, Pohl, Radek, Beran, Pavel, Rulíšek, Lubomír, Beier, Petr

Journal:

Chemistry - A European Journal

Year:

2014

Language:

english

File:

PDF, 435 KB

english, 2014

14

Application of PhSCF2CF2SiMe3 as a Tandem Anion and Radical Tetrafluoroethylene Equivalent: Fluoride-Catalyzed Addition to N-Substituted Cyclic Imides Followed by Radical Cyclization

Chernykh, Yana, Opekar, Stanislav, Klepetářová, Blanka, Beier, Petr

Journal:

Year:

2012

Language:

english

File:

PDF, 230 KB

english, 2012

15

Pressure-assisted introduction of urine samples into a short capillary for electrophoretic separation with contactless conductivity and UV spectrometry detection

Makrlíková, Anna, Opekar, František, Tůma, Petr

Journal:

ELECTROPHORESIS

Year:

2015

Language:

english

File:

PDF, 301 KB

english, 2015

16

A Capillary Electrophoresis Conductometric Detector Based on Measurement of the Conductivity of a Plastic Hydrophilic Strip

P. Tůma, F. Opekar, I. Jelínek, K. Štulík

Journal:

Electroanalysis

Year:

1999

Language:

english

File:

PDF, 91 KB

english, 1999

17

An Amperometric Detector with a Platinum Tubular Electrode for High Performance Liquid Chromatography

Josef Cvačka, František Opekar, Jiří Barek, Jiří Zima

Journal:

Electroanalysis

Year:

2000

Language:

english

File:

PDF, 107 KB

english, 2000

18

A contactless conductivity detector for capillary electrophoresis: Effects of the detection cell geometry on the detector performance

Petr Tůma, František Opekar, Karel Štulík

Journal:

ELECTROPHORESIS

Year:

2002

Language:

english

File:

PDF, 88 KB

english, 2002

19

ChemInform Abstract: Electrochemical Sensors with Solid Polymer Electrolytes

Frantisek Opekar, Karel Stulik

Journal:

Year:

1999

File:

PDF, 23 KB

1999

20

ChemInform Abstract: [2 + 2 + 2]-Cocyclotrimerization of 6-Alkynyl-7-benzylpurines with α,ω-Diynes.

Stanislav Opekar, Pavel Turek, Radek Pohl, Blanka Klepetarova, Ivan Votruba, Michal Hocek, Martin Kotora

Journal:

Year:

2011

File:

PDF, 43 KB

2011

21

ChemInform Abstract: 1,4-Addition of Tetraethyl Fluoromethylenebisphosphonate to α,β-Unsaturated Compounds.

Stanislav Opekar, Petr Beier

Journal:

Year:

2011

File:

PDF, 35 KB

2011

22

ChemInform Abstract: A New Route to α-Alkyl-α-fluoromethylenebisphosphonates.

Petr Beier, Stanislav Opekar, Mikhail Zibinsky, Inessa Bychinskaya, G. K Surya Prakash

Journal:

Year:

2011

File:

PDF, 45 KB

2011

23

Analytical applications of metallized membrane electrodes

František Opekar

Journal:

Electroanalysis

Year:

1989

Language:

english

File:

PDF, 876 KB

english, 1989

24

An amperometric solid-state sensor for Nitrogen dioxide based on a solid polymer electrolyte

František Opekar

Journal:

Electroanalysis

Year:

1992

Language:

english

File:

PDF, 583 KB

english, 1992

25

A solid polymer electrolyte amperometric detector for FIA and HPLC with mobile phases of low conductivity

Lukáš Loub, František Opekar, Věra Pacáková, Karel Štulík

Journal:

Electroanalysis

Year:

1992

Language:

english

File:

PDF, 514 KB

english, 1992

26

Solid-state hydrogen sensor based on a solid-polymer electrolyte

Zdeněk Samec, František Opekar, Guido J. E. F. Crijns

Journal:

Electroanalysis

Year:

1995

Language:

english

File:

PDF, 629 KB

english, 1995

27

A conductometric detector for capillary separations

D. Müller, I. Jelínek, F. Opekar, K. Štulik

Journal:

Electroanalysis

Year:

1996

Language:

english

File:

PDF, 506 KB

english, 1996

28

The Effects of the Electrode System Geometry on the Properties of Contactless Conductivity Detectors for Capillary Electrophoresis

Martin Novotný, František Opekar, Karel Štulík

Journal:

Electroanalysis

Year:

2005

Language:

english

File:

PDF, 188 KB

english, 2005

29

Thinly Insulated Wire Cells – A New Device for Sensitive Contactless Conductivity Detection in Flow Analyses

Zuzana Hoherčáková, František Opekar, Karel Štulík

Journal:

Electroanalysis

Year:

2005

Language:

english

File:

PDF, 188 KB

english, 2005

30

Renaissance of HF Impedimetry in Application to CE Detection

František Opekar, Karel Štulík

Journal:

Electroanalysis

Year:

2006

Language:

english

File:

PDF, 228 KB

english, 2006

31

Properties of the Contactless Impedance Detector with Insulated Wire Electrodes Placed Inside the Flowing Liquid Stream

Martina Nádherná, František Opekar, Karel Štulík

Journal:

Electroanalysis

Year:

2007

Language:

english

File:

PDF, 378 KB

english, 2007

32

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

Petr Tůma, František Opekar, Eva Samcová, Karel Štulík

Journal:

Electroanalysis

Year:

2008

Language:

english

File:

PDF, 596 KB

english, 2008

33

A Contactless Impedance Probe for Simple and Rapid Determination of the Ratio of Liquids with Different Permittivities in Binary Mixtures

František Opekar, Karel Štulík, Michaela Fišarová

Journal:

Electroanalysis

Year:

2009

Language:

english

File:

PDF, 268 KB

english, 2009

34

A Simple Contactless Conductivity Detector Employing a Medium Wave Radio Integrated Circuit for the Signal Treatment

František Opekar, Karel Štulík, Kateřina Fenclová

Journal:

Electroanalysis

Year:

2010

Language:

english

File:

PDF, 293 KB

english, 2010

35

Some Possibilities and Limitations of Contactless Impedimetric Determinations of Organic Liquids in Aqueous Solutions. The Interference from Ionic Compounds

František Opekar, Karel Štulík, Michaela Fišarová

Journal:

Electroanalysis

Year:

2010

Language:

english

File:

PDF, 228 KB

english, 2010

36

Application of Contactless Impedance Detection to Determination of Substances in Gaseous Phase

V. Pavlíček, F. Opekar, K. Štulík

Journal:

Electroanalysis

Year:

2011

Language:

english

File:

PDF, 215 KB

english, 2011

37

A dual spectrophotometric/contactless conductivity detector for CE determination of incompletely separated amino acids

Jana Zikmundová, Petr Tuma, František Opekar

Journal:

Journal of Separation Science

Year:

2008

Language:

english

File:

PDF, 188 KB

english, 2008

38

Pneumatopotentiometric determination of nanogram amounts of cyanide

František Opekar

Journal:

Analytica Chimica Acta

Year:

1986

Language:

english

File:

PDF, 453 KB

english, 1986

39

A wall-jet conductometric detector for determination of sulphur dioxide in air after preconcentration in water in an aerodispersion unit

František Opekar, Antonín Trojánek

Journal:

Analytica Chimica Acta

Year:

1987

Language:

english

File:

PDF, 581 KB

english, 1987

40

Amperometric detection of nitrates using a flow-through membrane detector

Antonín Trojánek, František Opekar

Journal:

Journal of Electroanalytical Chemistry and Interfacial Electrochemistry

Year:

1986

Language:

english

File:

PDF, 705 KB

english, 1986

41

Detection of hydrogen in air with a detector containing a nafion membrane metallized on both sides

František Opekar

Journal:

Journal of Electroanalytical Chemistry and Interfacial Electrochemistry

Year:

1989

Language:

english

File:

PDF, 337 KB

english, 1989

42

Electric resistance in a Nafion® membrane exposed to air after a step change in the relative humidity

František Opekar, Daniel Svozil

Journal:

Journal of Electroanalytical Chemistry

Year:

1995

Language:

english

File:

PDF, 245 KB

english, 1995

43

Ionic liquid–polymer electrolyte for amperometric solid-state NO2 sensor

Martina Nádherná, František Opekar, Jakub Reiter

Journal:

Electrochimica Acta

Year:

2011

Language:

english

File:

PDF, 191 KB

english, 2011

44

Determination of urinary 8-hydroxy-2′-deoxyguanosine in obese patients by HPLC with electrochemical detection

Eva Samcová, Petr Marhol, František Opekar, Jan Langmaier

Journal:

Analytica Chimica Acta

Year:

2004

Language:

english

File:

PDF, 109 KB

english, 2004

45

Improved dual photometric-contactless conductometric detector for capillary electrophoresis

Martin Novotný, František Opekar, Ivan Jelínek, Karel Štulík

Journal:

Analytica Chimica Acta

Year:

2004

Language:

english

File:

PDF, 101 KB

english, 2004

46

A contactless conductivity detection cell for flow injection analysis: Determination of total inorganic carbon

Zuzana Hoherčáková, František Opekar

Journal:

Analytica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 182 KB

english, 2005

47

Au/PVC composite—a new material for solid-state gas sensors: Detection of nitrogen dioxide in the air

Zuzana Hoherčáková, František Opekar

Journal:

Sensors and Actuators B: Chemical

Year:

2004

Language:

english

File:

PDF, 235 KB

english, 2004

48

Dual photometric-contactless conductometric detector for capillary electrophoresis

Tommy Chvojka, Ivan Jelı́nek, František Opekar, Karel Štulı́k

Journal:

Analytica Chimica Acta

Year:

2001

Language:

english

File:

PDF, 188 KB

english, 2001

49

Pheumatoamperometric determination of cyanide, sulfide and their mixtures

Frantisek Opekar, Stanley Bruckenstein

Journal:

Analytica Chimica Acta

Year:

1985

Language:

english

File:

PDF, 373 KB

english, 1985

50

Flow-through coulometric stripping analysis and the determination of manganese by cathodic stripping voltammetry

A. Trojánek, F. Opekar

Journal:

Analytica Chimica Acta

Year:

1981

Language:

english

File:

PDF, 521 KB

english, 1981