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Výsledek výzkumu

A general method for the calculation of absolute trace gas concentrations in air and breath from selected ion flow tube mass spectrometry data

A complete description is presented of a numerical method that allows the calculation, in real time, of absolute concentrations of trace gases, including volatile organic compounds and water vapour, from selected ion flow tube mass spectrometry, SIFT...

CF - Fyzikální chemie a teoretická chemie

  • 2006
  • Jx
Výsledek výzkumu

Combined use of gas chromatography and selected ion flow tube mass spectrometry for absolute trace gas quantification

The value of the gas chromatography (GC) and selected ion flow tube mass spectrometry (SIFT-MS) combination for the analysis of trace gases is demonstrated by the quantification of acetone in air samples using the three precursor ions available to SI...

CF - Fyzikální chemie a teoretická chemie

  • 2006
  • Jx
Výsledek výzkumu

Electron kinetics in cylindrical discharges of magnetron configurations

Electron kinetics in cylindrical discharges of magnetron configurations...

BL - Fyzika plasmatu a výboje v plynech

  • 2006
  • Jx
Výsledek výzkumu

The Role of Secondary Electrons in Low Pressure rf Glow Discharge

We concerned on the role of secondary electrons in low pressure rf glow discharge. The Particle in Cell/Monte Carlo computer simulations (PIC/MC) was applied to simulate the discharge. The influence of secondary electron emission yield (SEY) on the p...

BL - Fyzika plasmatu a výboje v plynech

  • 2005
  • D
Výsledek výzkumu

Selected ion flow tube mass spectrometry (sift-MS) for on-line trace gas analysis

Selected ion flow tube mass spectrometry (SIFT-MS) is a new analytical technique for the real-time quantification of several trace gases simultaneously in air and breath. It relies on chemical ionization of the trace gas molecules in air/breath sampl...

CF - Fyzikální chemie a teoretická chemie

  • 2005
  • Jx
Výsledek výzkumu

Applications of selected ion flow tube mass spectrometry, SIFT-MS, in addition research

Content of the chapter is: 1. Introduction; 1.1. SIFT-MS Technology; 1.2. SIFT-MS Applications in Addiction Psychiatry; 2. Detection of Breath Markers of Drug Use; 2.1. Cannabis; 2.2. .nu.-Hydroxybutyric Acid (GHB); 3. Breath Detection of Markers of ...

CF - Fyzikální chemie a teoretická chemie

  • 2005
  • C
Výsledek výzkumu

Influence of convection on the diffusive transport and sieving of water and small solutes across the peritoneal membrane

The three-pore model of peritoneal membrane physiology predicts sieving of small solutes as a result of the presence of a water-exclusive pathway. The purpose of this study was to measure the diffusive and convective components of small solute transp...

CF - Fyzikální chemie a teoretická chemie

  • 2005
  • Jx
Výsledek výzkumu

Coordinated FA-MS and SIFT-MS analyses of breath following ingestion of D2O and ethanol; total body water, dispersal kinetics and ethanol metabolism

A coordinated study of the dispersal of water between the various body compartments (stomach and gut, blood stream and tissue) and the similar dispersal kinetics of ethanol and its metabolism has been carried out involving two healthy volunteers usin...

CF - Fyzikální chemie a teoretická chemie

  • 2005
  • Jx
Výsledek výzkumu

A convenient method for calculation of ionic diffusion coefficients for accurate selected ion flow tube mass spectrometry, SIFT-MS

A method to calculate diffusion coefficients of ions important for the selected ion flow tube mass spectrometry, SIFT-MS, is presented. The ions, on which this method is demonstrated, include the SIFT-MS precursors H3O+(H2O)(0,1.2,3), NO+(H2O)(0,1.2)...

CF - Fyzikální chemie a teoretická chemie

  • 2005
  • Jx
Výsledek výzkumu

Optical emission spectroscopy of surfatron generated plasma in Ar + O2 and N2 + O2 mixtures

In this study surfatron-generated plasma in Ar + O2 and N2 + O2 gas mixtures was studied by means of optical emission spectroscopy. The surfatron powered by a microwave magnetron generator working at frequency 2.45 GHz in the output power range 0 300...

BL - Fyzika plasmatu a výboje v plynech

  • 2005
  • D
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