A5021595046- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Mass Spectrometry Techniques and Applications
- Atmospheric and Environmental Gas Dynamics
- Analytical chemistry methods development
- Advanced Chemical Sensor Technologies
- Air Quality Monitoring and Forecasting
- Spectroscopy and Laser Applications
- Ion-surface interactions and analysis
- Air Quality and Health Impacts
- Calibration and Measurement Techniques
- Vehicle emissions and performance
- Scientific Research and Discoveries
- Particle Accelerators and Free-Electron Lasers
- Theology and Philosophy of Evil
- Gyrotron and Vacuum Electronics Research
- War, Ethics, and Justification
- Violence, Religion, and Philosophy
- Catalytic Processes in Materials Science
- Toxic Organic Pollutants Impact
- Particle accelerators and beam dynamics
- Forensic Fingerprint Detection Methods
- Optical Imaging and Spectroscopy Techniques
- Analytical Chemistry and Chromatography
University of St Andrews
2024
University of Toronto
2012
Scottish Universities Physics Alliance
2011
University of Leicester
2004-2009
University of Edinburgh
2001-2002
A proton-transfer reaction mass spectrometer based on time-of-flight spectrometry is described. This instrument couples a radioactive ion source and drift tube with reflectron spectrometer. Volatile organic compounds in the gas phase concentrations at parts per billion by volume level can be detected matter of seconds, crucially, multichannel data acquisition TOF-MS means that this detection sensitivity available all channels simultaneously. The typical resolution (m/Δm) excess 1000....
Abstract. From June to July 2009 more than thirty different in-situ and remote sensing instruments from all over the world participated in Cabauw Intercomparison campaign for Nitrogen Dioxide measuring Instruments (CINDI). The took place at KNMI's Experimental Site Atmospheric Research (CESAR) Netherlands. Its main objectives were determine accuracy of state-of-the-art ground-based measurement techniques detection atmospheric nitrogen dioxide (both sensing), investigate their usability...
Abstract. A series of photooxidation experiments were conducted in an atmospheric simulation chamber order to investigate the oxidation mechanism and secondary organic aerosol (SOA) formation potential model anthropogenic gas phase precursor, 1,3,5-trimethylbenzene. Alongside specific measurements, comprehensive primarily by Chemical Ionisation Reaction Time-of-Flight Mass Spectrometry (CIR-TOF-MS), carried out provide detailed insight into composition behaviour components matrix during SOA...
Abstract The recently developed technique of energy‐dependent electrospray ionisation mass spectrometry (EDESI‐MS) has been implemented on a triple quadrupole spectrometer such that fragmentation occurs in the collision cell rather than at skimmer cone. This modification enables superior two‐dimensional map voltage versus mass‐to‐charge ratio to be generated, providing unambiguous peak assignments. latest enhancement is referred as tandem (EDESI‐MS/MS). In present work applied investigate...
Abstract Both breakdown graphs and energy‐dependent (ED) maps provide a means of visually representing the fragmentation processes resulting from collision‐induced dissociation at different energies. The two presentation methods may be combined for complete picture appearance, disappearance maximum abundance collision potentials each ions involved in process. A demonstration this approach is presented using very classes compound, an amino acid transition metal carbonyl cluster. Copyright ©...
Abstract. A breadboard demonstrator of a novel UV/VIS grating spectrometer has been developed based upon concentric arrangement spherical meniscus lens, concave mirror and curved diffraction suitable for range atmospheric remote sensing applications from the ground or space. The is compact provides high optical efficiency performance benefits over traditional instruments. design capable handling relative apertures, owing to aberration comma being near zero at all surfaces. also correction...
Abstract. From June to July 2009 more than thirty different in-situ and remote sensing instruments from all over the world participated in Cabauw Intercomparison campaign for Nitrogen Dioxide measuring Instruments (CINDI). The took place at KNMI's Experimental Site Atmospheric Research Netherlands. Its main objectives were determine accuracy of state-of-the-art ground-based measurement techniques detection atmospheric nitrogen dioxide (both sensing), investigate their usability satellite...
Abstract. A series of photooxidation experiments were conducted in an atmospheric simulation chamber order to investigate the secondary organic aerosol (SOA) formed from anthropogenic model gas phase precursor, 1,3,5-trimethylbenzene. Alongside specific measurements, comprehensive primarily by chemical ionisation reaction time-of-flight mass spectrometry (CIR-TOF-MS), carried out provide detailed insight into composition and behaviour components matrix during SOA formation. An array...
Abuse, when committed by spiritual authority figures, can have far-reaching consequences for church communities well after perpetrators been removed and held accountable. In attending to survivors, a host of issues may come light, including but not limited to, organizational complicity in abuse, institutional marginalization the vulnerable, revelation that worship spaces be traumatically triggering. The work scholars like Michelle Panchuk, Elaine Heath, Katharina von Kellenbach all point...
Under the first phase of Centre for Earth Observation Instrumentation (CEOI), a breadboard demonstrator novel UV/VIS spectrometer has been developed. Using designs from Surrey Satellite Technology Ltd (SSTL) constructed and tested at University Leicester's Space Research Centre. This provides an exceptionally compact instrument differential optical absorption spectroscopy (DOAS) applications LEO, GEO, HAP or ground-based platforms. Measurement atmo spheric compounds with climate change air...
Abstract. A breadboard demonstrator of a novel UV/VIS grating spectrometer for atmospheric research has been developed based upon concentric arrangement spherical meniscus lens, concave mirror and curved diffraction suitable range remote sensing applications from the ground or space. The is compact provides high optical efficiency performance benefits over traditional instruments. design capable handling relative apertures, owing to aberration coma being near zero at all surfaces. also...