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Mitschke, S.* ; Adam, T.* ; Streibel, T.* ; Baker, R.R.* ; Zimmermann, R.

Application of time-of-flight mass spectrometry with laser-based photoionization methods for time-resolved on-line analysis of mainstream cigarette smoke.

Anal. Chem. 77, 2288-2296 (2005)

DOI

Open Access Green as soon as Postprint is submitted to ZB.

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he application of soft photoionization mass spectrometry methods (PIMS) for cigarette mainstream smoke analysis is demonstrated. Resonance-enhanced multiphoton ionization (REMPI) at 260 nm and vacuum ultraviolet light single-photon ionization (SPI) at 118 nm were used in combination with time-of-flight mass spectrometry (TOFMS). An optimized smoking machine with reduced memory effects of smoke components was constructed, which in combination with the REMPI/SPI-TOFMS instrument allows PIMS smoke analysis with a time resolution of up to 10 Hz. The complementary character of both PIMS methods is demonstrated. SPI allows the detection of various aliphatic and aromatic compounds in smoke up to ∼120 m/z while REMPI is well suited for aromatic compounds. The capability of the instrument coupled to the novel sampling system for puff-by-puff resolved measurements is demonstrated. The feasibility of using the experimental system for intrapuff smoke measurements is also shown. Two main patterns of puff-by-puff behaviors are observed for different smoke constituents. The first group exhibits a constant increase in smoke constituent yield from the first to the last puff. The second group shows a high yield of the constituent in the first puff, with lower and constant or slowly increasing yields in the following puffs. A third group cannot be clearly classified and is a combination of both observed profiles.

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Publication type Article: Journal article

Document type Scientific Article

Corresponding Author

Keywords photoionization; on-line analysis; mainstream cigarette smoke; puff-by-puff resolved

ISSN (print) / ISBN 0003-2700

e-ISSN 1520-6882

Journal Analytical Chemistry

Quellenangaben Volume: 77, Issue: 8, Pages: 2288-2296

Publisher American Chemical Society (ACS)

Non-patent literature Publications

Reviewing status Peer reviewed

Institute(s) Institute of Ecological Chemistry (IOEC)