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Title:Increased sensitivity in proton transfer reaction mass spectrometry by incorporation of a radio frequency ion funnel
Authors:Barber, Shane (Author)
Blake, Robert S (Author)
White, Iain R (Author)
Monks, Paul S (Author)
Reich, Fraser (Author)
Mullock, Stephen (Author)
Ellis, Andrew M (Author)
Files:This document has no files. This document may have a phisical copy in the library of the organization, check the status via COBISS. Link is opened in a new window
Language:English
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract: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 case. An increase in the detection sensitivity for volatile organic compounds of between 1 and 2 orders of magnitude is delivered, as demonstrated using several compounds. Other aspects of analytical performance explored in this study include the effective E/N (ratio of electric field to number density of the gas) and dynamic range over which the drift tube is operated. The dual-purpose drift tube/ion funnel can be coupled to various types of mass spectrometers to increase the detection sensitivity and may therefore offer considerable benefits in PTR-MS work.
Keywords:Analytical performance, Detection sensitivity, Drift tube, Dynamic range, Ion funnels, Proton-transfer reaction mass spectrometry, Volatile organic compounds
Year of publishing:2012
Number of pages:5387-5391
Numbering:84, 12
COBISS_ID:5420283 Link is opened in a new window
URN:URN:SI:UNG:REP:D1FD3WSB
DOI:10.1021/ac300894t Link is opened in a new window
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Record is a part of a journal

Title:Analytical Chemistry
Shortened title:Anal. Chem.
Publisher:American Chemical Society
ISSN:00032700
Year of publishing:2012

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