Publikationstyp: | Beitrag in wissenschaftlicher Zeitschrift |
Art der Begutachtung: | Peer review (Publikation) |
Titel: | Unambiguous identification of volatile organic compounds by proton-transfer-reaction mass-spectrometry (PTR-MS) coupled with GC-MS |
Autor/-in: | Lindinger, Christian Pollien, Philippe Ali, Santo Yeretzian, Chahan Blank, Imre Tilmann, Märk |
DOI: | 10.1021/ac0501240 |
Erschienen in: | Analytical Chemistry |
Band(Heft): | 77 |
Heft: | 13 |
Seite(n): | 4117 |
Seiten bis: | 4124 |
Erscheinungsdatum: | 26-Mai-2005 |
Verlag / Hrsg. Institution: | American Chemical Society |
Verlag / Hrsg. Institution: | Columbus |
ISSN: | 0003-2700 1520-6882 |
Sprache: | Englisch |
Schlagwörter: | PTR-MS |
Fachgebiet (DDC): | 540: Chemie |
Zusammenfassung: | Interest in on-line measurements of volatile organic compounds (VOCs) is increasing, as sensitive, compact, and affordable direct inlet mass spectrometers are becoming available. Proton-transfer reaction mass spectrometry (PTR-MS) distinguishes itself by its high sensitivity (low ppt range), high time resolution (200 ms), little ionization-induced fragmentation, and ionization efficiency independent of the compound to be analyzed. Yet, PTR-MS has a shortcoming. It is a one-dimensional technique that characterizes compounds only via their mass, which is not sufficient for positive identification. Here, we introduce a technical and analytical extension of PTR-MS, which removes this shortcoming, while preserving its salient and unique features. Combining separation of VOCs by gas chromatography (GC) with simultaneous and parallel detection of the GC effluent by PTR-MS and electron impact MS, an unambiguous interpretation of complex PTR-MS spectra becomes feasible. This novel development is discussed on the basis of characteristic performance parameters, such as resolution, linear range, and detection limit. The recently developed drift tube with a reduced reaction volume is crucial to exploit the full potential of the setup. We illustrate the performance of the novel setup by analyzing a complex food system. |
URI: | https://digitalcollection.zhaw.ch/handle/11475/5468 |
Volltext Version: | Publizierte Version |
Lizenz (gemäss Verlagsvertrag): | Lizenz gemäss Verlagsvertrag |
Departement: | Life Sciences und Facility Management |
Organisationseinheit: | Institut für Chemie und Biotechnologie (ICBT) |
Enthalten in den Sammlungen: | Publikationen Life Sciences und Facility Management |
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Lindinger, C., Pollien, P., Ali, S., Yeretzian, C., Blank, I., & Tilmann, M. (2005). Unambiguous identification of volatile organic compounds by proton-transfer-reaction mass-spectrometry (PTR-MS) coupled with GC-MS. Analytical Chemistry, 77(13), 4117–4124. https://doi.org/10.1021/ac0501240
Lindinger, C. et al. (2005) ‘Unambiguous identification of volatile organic compounds by proton-transfer-reaction mass-spectrometry (PTR-MS) coupled with GC-MS’, Analytical Chemistry, 77(13), pp. 4117–4124. Available at: https://doi.org/10.1021/ac0501240.
C. Lindinger, P. Pollien, S. Ali, C. Yeretzian, I. Blank, and M. Tilmann, “Unambiguous identification of volatile organic compounds by proton-transfer-reaction mass-spectrometry (PTR-MS) coupled with GC-MS,” Analytical Chemistry, vol. 77, no. 13, pp. 4117–4124, May 2005, doi: 10.1021/ac0501240.
LINDINGER, Christian, Philippe POLLIEN, Santo ALI, Chahan YERETZIAN, Imre BLANK und Märk TILMANN, 2005. Unambiguous identification of volatile organic compounds by proton-transfer-reaction mass-spectrometry (PTR-MS) coupled with GC-MS. Analytical Chemistry. 26 Mai 2005. Bd. 77, Nr. 13, S. 4117–4124. DOI 10.1021/ac0501240
Lindinger, Christian, Philippe Pollien, Santo Ali, Chahan Yeretzian, Imre Blank, and Märk Tilmann. 2005. “Unambiguous Identification of Volatile Organic Compounds by Proton-Transfer-Reaction Mass-Spectrometry (PTR-MS) Coupled with GC-MS.” Analytical Chemistry 77 (13): 4117–24. https://doi.org/10.1021/ac0501240.
Lindinger, Christian, et al. “Unambiguous Identification of Volatile Organic Compounds by Proton-Transfer-Reaction Mass-Spectrometry (PTR-MS) Coupled with GC-MS.” Analytical Chemistry, vol. 77, no. 13, May 2005, pp. 4117–24, https://doi.org/10.1021/ac0501240.
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