A5038329732- Mass Spectrometry Techniques and Applications
- Advanced Chemical Sensor Technologies
- Analytical Chemistry and Chromatography
- Analytical chemistry methods development
- Pesticide Residue Analysis and Safety
- Calibration and Measurement Techniques
- Membrane Separation and Gas Transport
- Sensor Technology and Measurement Systems
- Polymer Science and PVC
- Gas Sensing Nanomaterials and Sensors
- Synthesis and properties of polymers
- Analytical Chemistry and Sensors
- Thermal Radiation and Cooling Technologies
- Renewable energy and sustainable power systems
- Isotope Analysis in Ecology
- Electrostatics and Colloid Interactions
- Radiation Detection and Scintillator Technologies
- Electrochemical Analysis and Applications
- Air Quality Monitoring and Forecasting
- Advanced oxidation water treatment
- Ionic liquids properties and applications
- Smoking Behavior and Cessation
- Plasma Applications and Diagnostics
- Advanced Semiconductor Detectors and Materials
- Advanced Sensor Technologies Research
Military University of Technology in Warsaw
2015-2024
Instytut Chemii i Techniki Jądrowej
2016
University of Eastern Finland
2008-2011
Finland University
2011
Ions in the ion mobility spectrometry (IMS) are mostly hydrated. A single peak drift time spectrum is usually generated by a mixture of ions differing number attached water molecules. Under real IMS detector operating conditions, change their composition during movement region due to changes molecules ion. The impact vapor on times small at different temperatures was studied experimentally using an spectrometer. experiments were carried out for hydronium, ammonium, oxygen, chloride, bromide,...
A novel process combining hydrogen peroxide (H2O2) and radiation emitted by ultraviolet light emitting diodes (UV LEDs) has been investigated. The UV LEDs were used as UV‐C sources in the range 257–277 nm for decomposition of model substance phenol water. In addition, effect H2O2 to molar ratio initial concentration was examined. Two parameters, efficiency characterization hydroxyl radical (HO•) production from when illuminated with radiation, selected provide detailed information regarding...
This study describes the relationship between output signal of ion mobility spectrometry (IMS) detector and concentrations two compounds being simultaneously introduced into reaction section. Investigations were performed for three pairs compounds, that is, dimethyl methylphosphonate (DMMP) acetone, methyl tert-butyl ether (MTBE), as well trimethylamine (TMA) n-nonylamine (NA). Vapors investigated produced in a two-channel generator with permeation sources dilution system based on mass-flow...
Limits of detection (LODs) in ion mobility spectrometry (IMS) strictly depend on ionization the analyte. Especially challenging is compounds with relatively low proton affinity (PA) such as aromatic compounds. To change course ion-molecule reactions and enhance performance IMS spectrometer, substances called dopants are introduced into carrier gas. In this work, we present results studies using nitrogen oxides (NOx) dopants. Three compounds, benzene, toluene, toluene diisocyanate and, for...
Ion mobility spectra are initiated when ions, derived from a sample, pulsed or injected through ion shutters into drift region. The effect on signal intensity electric fields arising the shutter grids (Es) and superimposed field of tube (Ed) was determined experimentally simulated computationally for motion at ambient pressure. combination these two influenced performance in three ways: (1) an peak suppressed by increased current baseline due to continuous leakage ions region insufficient Es...
Abstract The performance of a differential mobility spectrometer was characterized at ambient pressure and ten values water vapor concentration, from 1.0 × 10 2 to 1.7 4 ppm using homologous series seven ketones acetone 2-dodecanone. Dispersion plots 30 °C with separation fields 35 123 Td exhibited increased alpha functions for the hydrated proton, protonated monomers, proton bound dimers moisture levels. Increases in level were accompanied by decreased quantitative response progressive...
Differential Mobility Spectrometry (DMS), also called as FAIMS is a variation of atmospheric pressure ion mobility measurement techniques and capable providing information about the electric field - dependence ions. In this method, combined used. This consists asymmetric oscillating high intensity low static component. Analytical in DMS 2-dimensional ionic current on amplitude value intensity. The signal for whole ranges both variables time consuming generates lot data. It disadvantage which...
Drift tube ion mobility spectrometers (DT IMS) allow the concentration of different organic compounds to be measured. This gives opportunity use these detectors in measuring penetration various substances through polymer membranes. Permeation measurements two (2-heptanone and dimethyl methylphosphonate (DMMP)) a cylindrical silicone rubber membrane were carried out. The separated aqueous solution from air. analyte was introduced into water, then its air on opposite side recorded. Based...
Quantitative information obtained from drift tube detectors used in ion mobility spectrometry is contained the area of peaks forming time spectrum. The all corresponds to total charge ions entering section spectrometer. It was found that this not conserved when composition changes. This work devoted studying causes phenomenon. Experimental research consisted recording spectra for 2-pentanone and
The technology of covering IR sources with high emissivity materials was worked out. Platinum black electrodeposited from H<sub>2</sub>PtCl<sub>6</sub> solution on platinum foil. current densities 0.1 to 5 mA/mm<sup>2</sup> and the deposition time 1 15 minutes were employed. microstructures examined using scanning electron microscopy. For below island structures received. 2 first structure arises, next it changes sponge structure. above only observed. multiple increases coefficient...