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Št. zadetkov: 7
Validation of an assay for the determination of levoglucosan and associated monosaccharide anhydrides for the quantification of wood smoke in atmospheric aerosol
Rebecca L. Cordell, I. R. White, Paul S. Monks
Izvirni znanstveni članek
Oznake: levoglucosan;monosaccharide anhydrides;wood burning;
Biomass burning is becoming an increasing contributor to atmospheric particulate matter, and concern is increasing over the detrimental health effects of inhaling such particles. Levoglucosan and related monosaccharide anhydrides (MAs) can be used as tracers of the contribution of wood burning to to ...
Leto: 2014 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
Metabolite profiling of the ripening of mangoes Mangifera indica L. cv. 'Tommy Atkins' by real-time measurement of volatile organic compounds
I. R. White, Robert S. Blake, Andrew John Taylor, Paul S. Monks
Izvirni znanstveni članek
Oznake: Mangifera indica;Tommy Atkins;VOCs;ripening;mango;
Real-time profiling of mango ripening based on proton transfer reaction-time of flight-mass spectrometry (PTR–ToF–MS) of small molecular weight volatile organic compounds (VOCs), is demonstrated using headspace measurements of ‘Tommy Atkins’ mangoes. VOC metabolites produced during the ripening proc ...
Leto: 2016 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
Increased sensitivity in proton transfer reaction mass spectrometry by incorporation of a radio frequency ion funnel
Shane Barber, Robert S. Blake, I. R. White, Paul S. Monks, Fraser Reich, Steve Mullock, Andrew Michael Ellis
Izvirni znanstveni članek
Oznake: analytical performance;detection sensitivity;drift tube;dynamic range;ion funnels;proton-transfer;reaction mass spectrometry;
A drift tube capable of simultaneously functioning as an ion funnel is demonstrated in proton transfer reaction mass spectrometry (PTR-MS) for the first time. The ion funnel enables a much higher proportion of ions to exit the drift tube and enter the mass spectrometer than would otherwise be the ca ...
Leto: 2012 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
Observations of the release of non-methane hydrocarbons from fractured shale
Roberto Sommariva, Robert S. Blake, Robert J. Cuss, Rebecca L. Cordell, Jon F. Harrington, I. R. White, Paul S. Monks
Izvirni znanstveni članek
Oznake: environmental impact;hydraulic fracturing;mass spectrometry;
The organic content of shale has become of commercial interest as a source of hydrocarbons, owing to the development of hydraulic fracturing ("fracking"). While the main focus is on the extraction of methane, shale also contains significant amounts of non-methane hydrocarbons (NMHCs). We describe th ...
Leto: 2014 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
What effect does VOC sampling time have on derived OH reactivity?
Hannah Sonderfeld, I. R. White, Iain C. A. Goodal, James R. Hopkins, Alastair C. Lewis, Ralf Koppmann, Paul S. Monks
Izvirni znanstveni članek
Oznake: hydroxyl radical;atmospheric chemistry;box model;
State-of-the-art techniques allow for rapid measurements of total OH reactivity. Unknown sinks of OH and oxidation processes in the atmosphere have been attributed to what has been termed ĝ€missingĝ€ OH reactivity. Often overlooked are the differences in timescales over which the diverse measurement ...
Leto: 2016 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
Distribution of gaseous and particulate organic composition during dark [alpha]-pinene ozonolysis
M. Camredon, J. F. Hamilton, M. S. Alam, K. P. Wyche, T. Carr, I. R. White, Paul S. Monks, A. R. Rickard, W. J. Bloss
Izvirni znanstveni članek
Oznake: aerosol;aerosol formation;smog chamber;
Secondary Organic Aerosol (SOA) affects atmospheric composition, air quality and radiative transfer, however major difficulties are encountered in the development of reliable models for SOA formation. Constraints on processes involved in SOA formation can be obtained by interpreting the speciation a ...
Leto: 2010 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
Real-time multi-marker measurement of organic compounds in human breath
I. R. White, Kerry A. Willis, Chris Whyte, Rebecca L. Cordell, Robert S. Blake, Andrew J. Wardlaw, Satish S. C. Rao, Jonathan Grigg, Andrew Michael Ellis, Paul S. Monks
Izvirni znanstveni članek
Oznake: volatile organic compounds;breath;mass spectrometry;cystic fibrosis;proton transfer reaction;
The prospects for exploiting proton transfer reaction-time of flight-mass spectrometry (PTR-ToF-MS) in medical diagnostics are illustrated through a series of case studies. Measurements of acetone levels in the breath of 68 healthy people are presented along with a longitudinal study of a single per ...
Leto: 2013 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
Št. zadetkov: 7
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