Search results for "atmospheric pressure chemical ionization"

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In vivo aroma release by APCI-MS and PTR-MS: impact of water content of exhaled air and evidence for competition between aroma compounds

2013

Livre ISBN-13 : 978-3-902811-91-2; International audience; Atmospheric pressure chemical ionization mass spectrometry (APCI-MS) or proton transfer reaction mass spectrometry (PTR-MS) has been in use frequently for in vivo aroma release studies. In APCI-MS, protonated water clusters formed from moisture in the expired air are used as reagent ions. Yet the influence of a change in relative water content in the ionization gas on the data collected have been rarely studied and conflicting results were obtained. In this context our first objective was to study the impact of water content of the expired air on the level of aroma release measured by APCI-MS and to compare with the results obtained…

[SDV.AEN] Life Sciences [q-bio]/Food and Nutritionatmospheric pressure chemical ionization[ SDV.AEN ] Life Sciences [q-bio]/Food and Nutritionproton transfer reactionin vivo aroma releaseAPCI-MS[SDV.AEN]Life Sciences [q-bio]/Food and NutritionPTR-MSmass spectrometry

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