The mission of the agro-food industry is to guarantee food safety and, at the same time, improve perceived food quality and fulfill consumer expectations. One of the chief quality traits for the agro-food industry is the development of volatile organic compounds (VOCs), associated with the shelf life and taste quality of food products. Proton-transfer-reaction–mass spectrometry coupled with a time-of-flight mass analyzer gives the possibility of detecting and quantifying VOCs in a direct, simultaneous, and real-time approach at very low levels with both high mass and time resolution. External mass-scale calibration is performed before data acquisition for spectra alignment and for facilitating the online monitoring of ongoing experiment. Since proton-transfer reaction-mass spectrometry (PTR-MS) belongs to the class of Direct injection mass spectrometric techniques, its main capability is to sample and analyze gas samples continuously. For this reason, PTR-MS, from the very beginning, was mostly applied in the ambient and environmental studies of air pollutants.

Khomenko, I.; Farneti, B. (2019). Proton-Transfer-Reaction–Mass Spectrometry. In: Food aroma evolution: during food processing, cooking and aging (editor(s) Bordiga, M; Nollet, L.M.L.): CRC press Taylor & Francis Group. (Food Analysis & Properties): 217-240. ISBN: 9781138338241 handle: http://hdl.handle.net/10449/58669

Proton-Transfer-Reaction–Mass Spectrometry

Khomenko, I
Primo
;
Farneti, B.
Ultimo
2019-01-01

Abstract

The mission of the agro-food industry is to guarantee food safety and, at the same time, improve perceived food quality and fulfill consumer expectations. One of the chief quality traits for the agro-food industry is the development of volatile organic compounds (VOCs), associated with the shelf life and taste quality of food products. Proton-transfer-reaction–mass spectrometry coupled with a time-of-flight mass analyzer gives the possibility of detecting and quantifying VOCs in a direct, simultaneous, and real-time approach at very low levels with both high mass and time resolution. External mass-scale calibration is performed before data acquisition for spectra alignment and for facilitating the online monitoring of ongoing experiment. Since proton-transfer reaction-mass spectrometry (PTR-MS) belongs to the class of Direct injection mass spectrometric techniques, its main capability is to sample and analyze gas samples continuously. For this reason, PTR-MS, from the very beginning, was mostly applied in the ambient and environmental studies of air pollutants.
Settore AGR/15 - SCIENZE E TECNOLOGIE ALIMENTARI
2019
9781138338241
Khomenko, I.; Farneti, B. (2019). Proton-Transfer-Reaction–Mass Spectrometry. In: Food aroma evolution: during food processing, cooking and aging (editor(s) Bordiga, M; Nollet, L.M.L.): CRC press Taylor & Francis Group. (Food Analysis & Properties): 217-240. ISBN: 9781138338241 handle: http://hdl.handle.net/10449/58669
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