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18 398 (0,121s)

Result

Occurrence of radical molecular ions in atmospheric pressure chemical ionization mass spectra of heterocyclic compounds

Occurrence of radical molecular ions in atmospheric pressure chemical ionization mass spectra of heterocyclic compounds...

CB - Analytická chemie, separace

  • 2007
  • Jx
Result

Impact of cosmic rays and solar energetic particles on the Earth?s ionosphere and atmosphere

rays (CR) and solar energetic particles (SEP) in the ionosphere and atmosphere is presented. Models CORIMIA (COsmic Ray Ionization Model for Ionosphere and Atmosphere measurements of the atmospheric ionization...

DG - Vědy o atmosféře, meteorologie

  • 2013
  • Jx
  • Link
Result

Radon and air ionization

Work solves problems of equilibria of atmospheric ions depending on 222Rn concentration and his daughter products. Work describes atmospheric ions concentrations dependencies on radon volume activity and relevant physical and microc...

KA - Vojenství

  • 2006
  • D
Result

Rayleigh Scattering in the Atmospheres of Hot Stars

scattering by neutral hydrogen and singly ionized helium in the stellar model atmospheres electrons. This process is often neglected in hot star model atmospheres. The reason is that a large fraction of hydrogen and helium...

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2015
  • D
Result

Secondary processes in atmospheric pressure chemical ionization-ion trap mass spectrometry: a case study of orotic acid

Atmospheric pressure chemical ionization is known for producing unusual artifacts of the ionization process in some cases. In this work, processes occuring in atmospheric pressure chemical ionization/MS of...

CB - Analytická chemie, separace

  • 2012
  • Jx
  • Link
Result

Identification of astaxanthin diglucoside diesters from snow alga Chlamydomonas nivalis by liquid chromatography-atmospheric pressure chemical ionization mass spectrometry

A method is described for the identification of astaxanthin glucoside esters from snow alga Chlamydomonas nivalis by means of liquid chromatography-mass spectrometry with atmospheric pressure chemical ionization (LC-MS/APCI)....

EF - Botanika

  • 2008
  • Jx
Result

Effects of Functional Groups on the Fragmentation of Dyes in Electrospray and Atmospheric Pressure Chemical Ionization Mass Spectra

Effects of Functional Groups on the Fragmentation of Dyes in Electrospray and Atmospheric Pressure Chemical Ionization Mass Spectra......

CB - Analytická chemie, separace

  • 2007
  • Jx
Result

Spherically Symmetric NLTE Model Atmospheres of Hot Hydrogen-Helium First Stars

We present results of our calculations of NLTE model stellar atmospheres code for the calculation of spherically symmetric NLTE model atmospheres in hydrostatic and radiative equilibrium. The model atmospheres are then used...

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2012
  • Jx
  • Link
Result

Ionization Techniques and Interfaces for Coupling of Capillary Electromigration Methods with Mass Spectrometry Detection

, with mass spectrometry detection. Principles of the soft ionization techniques, atmospheric pressure chemical ionization, atmospheric pressure photo ionization, electrospray ionization, desorpti...

CG - Elektrochemie

  • 2013
  • Jx
  • Link
Result

Reprocessing of Lc in irradiated atmospheres of unevolved companions in precataclysmic binaries (PCB) as a senzitive tool for measuring the temperatures of hot subdwarf primaries.

Processes in outermost layers of irradiated atmospheres of low-mass companions in precataclysmic binaries are studied using equations of hydrostatic, ionization, and thermal equilibrium and the reprocessed continuum radiation is cal...

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2001
  • Jx
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