A5053003857- Advanced Chemical Sensor Technologies
- Mass Spectrometry Techniques and Applications
- Analytical Chemistry and Chromatography
- Indoor Air Quality and Microbial Exposure
- Advanced Chemical Physics Studies
- Odor and Emission Control Technologies
- Atmospheric chemistry and aerosols
- Gas Sensing Nanomaterials and Sensors
- Catalytic Processes in Materials Science
- Carbon Dioxide Capture Technologies
- Air Quality and Health Impacts
- Metal-Organic Frameworks: Synthesis and Applications
- Covalent Organic Framework Applications
- Industrial Gas Emission Control
- Analytical chemistry methods development
- Molecular Spectroscopy and Structure
- Adsorption and biosorption for pollutant removal
- Air Quality Monitoring and Forecasting
- Vehicle emissions and performance
- Spectroscopy and Quantum Chemical Studies
- Advanced Photocatalysis Techniques
- Smoking Behavior and Cessation
- Ion-surface interactions and analysis
- Toxic Organic Pollutants Impact
- Membrane Separation and Gas Transport
Anyang University
2014-2024
Hanyang University
2015-2024
Government of the Republic of Korea
2015-2020
Seoul Institute
2020
Sejong University
2013-2014
University of Maine
2002-2010
Universidad Autónoma de Madrid
2005
Laboratoire de Chimie Physique
2005
Université Paris-Sud
2005
École Polytechnique
2005
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTProgress toward an absolute gas-phase proton affinity scaleJ. E. Szulejko and T. B. McMahonCite this: J. Am. Chem. Soc. 1993, 115, 17, 7839–7848Publication Date (Print):August 1, 1993Publication History Published online1 May 2002Published inissue 1 August 1993https://pubs.acs.org/doi/10.1021/ja00070a033https://doi.org/10.1021/ja00070a033research-articleACS PublicationsRequest reuse permissionsArticle Views905Altmetric-Citations317LEARN ABOUT THESE...
Abstract In this research, we investigated the sorptive behavior of a mixture 14 volatile and semi-volatile organic compounds (four aromatic hydrocarbons (benzene, toluene, p-xylene, styrene), six C 2 -C 5 fatty acids (VFAs), two phenols, indoles) against three metal-organic frameworks (MOFs), i.e., MOF-5, Eu-MOF, MOF-199 at to 10 mPa VOC partial pressures (25 °C). The selected MOFs exhibited strongest affinity for (polar) molecules (skatole), whereas weakest toward was (non-polar) (i.e.,...
Recently, the potential role of MOFs/PCPs has been recognized in AQM due to their intrinsically tunable chemical structure and multifunctional properties which afford significant enhancements adsorption capacities, catalytic degradation, removal diverse airborne pollutants.
Travelling wave ion mobility mass spectrometry (TWIM‐MS) with post‐TWIM and pre‐TWIM collision‐induced dissociation (CID) experiments were used to form, separate characterize protomers sampled directly from solutions or generated in the gas phase via CID. When solution equilibria, these species transferred electrospray ionization, then separated by TWIM‐MS. CID performed after TWIM separation (post‐TWIM) allowed characterization of both structurally diagnostic fragments. Protonated aniline...
Abstract Methods are described for the unequivocal identification of acetyl, [CH 3 \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm C}\limits^{\rm + } $\end{document} O] ( a ), 1‐hydroxyvinyl, 2 OH] b and oxiranyl, d cations. They involve careful examination metastable peak intensities shapes collision induced processes at very low, high intermediate gas pressures. It will be shown that each [C H O] ion produces unique fragmentation → ] +CO, appropriately relating...
High-Pressure Mass Spectrometric (HPMS) experiments have been carried out to probe the details of double minimum potential energy surface for gas-phase SN2 reactions. The well depths and entropy changes associated with formation entrance exit channel electrostatic complexes chloride bromide adducts methyl, ethyl, isopropyl, tert-butyl chlorides bromides determined from temperature dependence equilibrium constants adduct formation. In cases "symmetric" identity reactions, there is an increase...
Abstract A method is described for the investigation of structure neutral products from unimolecular (metastable) dissociative ionizations mass selected ions, by means collisionally induced ionization species themselves. The species, with kilovolt translational energies, enter a positively charged collision cell situated in second field free region standard ZAB‐2F spectrometer. Dissociative neutrals results therein their collisions He target gas. resulting ions are analysed electric sector...
<i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">A Review</i> : Cancer cell growth releases molecular biomarkers into blood that can be useful in diagnostic tests, e.g., serum biomarkers. The use of involves an invasive sample collection procedure. Human exhaled breath is potentially a noninvasive source cancer biomarker compounds. A few analysis studies have reported sensitivities > 90% and specificities 80% using suite to differentiate subjects...
As an alternative source of off-grid electric power, solar home systems (SHS) stand out above all other options (e.g., wind, hydro, geo-thermal, tidal systems) because their wide-scale potential at latitudes less than 45° north or south the Equator where daily irradiance is more constant throughout year and bulk Third World’s population live. A questionnaire-based survey study was carried in a rural area Bangladesh to ascertain impacts SHSs on lives population. The installation SHS found...
A procedure has been developed to estimate GC-MS response factors based on the theory of effective carbon number defined as sum and equivalent for each selected molecular descriptor (multiplied by its occurrences) in compound's structure. As a means validate analysis, test suite 19 volatile organic compounds was analyzed sorbent-tube thermal desorption method. In procedure, determined yield optimal linear plots between factor versus with maximum R(2) (>0.975) minimum mean absolute error...