Mgr. Kseniya Dryahina, Ph.D.

 

Department of Chemistry of Ions in Gaseous Phase

kseniya.dryahina@jh-inst.cas.cz

 

 

RESEARCH EXPERIENCE

·        Identification of trace metabolites in human breath using mass spectrometry-based methods.

·        Ion chemistry involved in quantification of trace volatile compounds in air, exhaled breath and in the headspace of biological samples.

·        Development new approaches to the Secondary Electrospray Ionisation Mass Spectrometry (SESI-MS) focused on quantification.

·        Studies of the kinetics of ion-molecule reactions of H3O+, NO+ and O2+ ions with neutral complex molecules in Selected Ion Flow Tube Mass Spectrometry (SIFT-MS).

RECENT PUBLICATIONS

·       K. Dryahina, P. Španěl. Soft Chemical Ionization Mass Spectrometric Analyses of Hazardous Gases and Decomposition Products of Explosives in Air. in M. F. Pereira, A. Apostolakis (eds.), Terahertz (THz), Mid Infrared (MIR) and Near Infrared (NIR) Technologies for Protection of Critical Infrastructures Against Explosives and CBRN, Springer, Dordrecht, 2021. https://doi.org/10.1007/978-94-024-2082-1

·       K. Dryahina, S. Som, D. Smith, P. Španěl.Reagent and analyte ion hydrates in secondary electrospray ionization mass spectrometry (SESI-MS), their equilibrium distributions and dehydration in an ion transfer capillary: Modelling and experiments. Rapid Commun. Mass Spectrom., 35 (2021) e9047. https://doi.org/https://doi.org/10.1002/rcm.9047

·       S. Som, J. Kubišta, K. Dryahina, P. Španěl. Parallel secondary electrospray ionisation mass spectrometry and selected ion flow tube mass spectrometry quantification of trace amounts of volatile ketones. Rapid Commun. Mass Spectrom., 35 (2021) e8981. https://doi.org/https://doi.org/10.1002/rcm.8981

·       Volatile compounds released by Nalophan; implications for selected ion flow tube mass spectrometry and other chemical ionisation mass spectrometry analytical methods. R.B. Michalcikova, K. Dryahina, D. Smith, P. Spanel Rapid Commun. Mass Spectrom. 34 (2020) e8744. https://doi.org/10.1002/rcm.8602

·       K. Dryahina, S. Som, D. Smith, P. Spanel. Characterization of spoilage-related volatile organic compounds in packaged leaf salads. Flavour and Fragrance Journal 35 (2020) 24-33. https://doi.org/10.1002/ffj.3535

 

 

List of available chemicals (lab 216)

 

 

Downloads

pcaMSwin.exe – Windows application for direct analysis of SIFT-MS data using Principal component analysis (PCA). Source code in Delphi.

 

DiffusionCalc.exe – Windows application for graphical representation of molecular ionic structures using Van der Waals radii and calculation of ionic mobilities and diffusion coefficients from ion geometry. Source code in Delphi.

 

muiview-interm.res.exe – a new version of MuiView program