Results 11 to 20 of about 1,345,257 (199)
PTR-MS Characterization of VOCs Associated with Commercial Aromatic Bakery Yeasts of Wine and Beer Origin. [PDF]
Molecules, 2016 In light of the increasing attention towards “green” solutions to improve food quality, the use of aromatic-enhancing microorganisms offers the advantage to be a natural and sustainable solution that did not negatively influence the list of ingredients ...
Capozzi V +9 more
europepmc +2 more sources
PTR-MS in Italy: A Multipurpose Sensor with Applications in Environmental, Agri-Food and Health Science [PDF]
Sensors, 2013 Proton Transfer Reaction Mass Spectrometry (PTR-MS) has evolved in the last decade as a fast and high sensitivity sensor for the real-time monitoring of volatile compounds. Its applications range from environmental sciences to medical sciences, from food
Franco Biasioli +6 more
doaj +2 more sources
Short-Term Machine-Learning Calibration of PID Sensors for Ambient VOC OH Reactivity [PDF]
SensorsPhotoionization detector (PID) sensors are widely used for ambient Volatile organic compound (VOC) monitoring because they are inexpensive, flexible, and fast.
Han Yang +13 more
doaj +2 more sources
Lag time determination in DEC measurements with PTR-MS [PDF]
Atmospheric Measurement Techniques, 2010 The disjunct eddy covariance (DEC) method has emerged as a popular technique for micrometeorological flux measurements of volatile organic compounds (VOCs).
R. Taipale, T. M. Ruuskanen, J. Rinne
doaj +4 more sources
Rapid Evaluation of Poultry Meat Shelf Life Using PTR-MS [PDF]
Food Analytical Methods, 2018 The use of proton transfer reaction mass spectrometry (PTR-MS) for freshness classification of chicken and turkey meat samples was investigated. A number of volatile organic compounds (VOCs) were selected based on the correlation (> 95%) of their concentration during storage at 4 °C over a period of 5 days with the results of the microbial analysis. In
Wojciech Wojnowski +5 more
openaire +2 more sources
Separations, 2022 Proton-transfer reaction mass spectrometry (PTR-MS) is a versatile tool for the mass spectrometric analysis of organic molecules in gaseous samples. Due to its operation principle, PTR-MS is a soft ionization technique generating spectral data typically ...
Vera Reinstadler +4 more
doaj +1 more source
Frontiers in Molecular Biosciences, 2023 The application of direct-injection mass spectrometric (DI-MS) techniques, like Proton Transfer Reaction Time of Flight Mass Spectrometry (PTR-ToF-MS) has been suggested as a reliable phenotyping tool for fruit volatilome assessment in both genetic and ...
Brian Farneti +8 more
doaj +1 more source
Proton transfer reaction mass spectrometry: A green alternative for food volatilome profiling
Green Analytical Chemistry, 2022 Proton transfer reaction mass spectrometry (PTR-MS) has been developed for the direct, high sensitivity and high time resolution monitoring of volatile organic compounds (VOCs).
Maria Mazzucotelli +7 more
doaj +1 more source
Atmospheric Measurement Techniques, 2023 . The measurement of volatile organic compounds (VOCs) can be influenced by ozone (O3), resulting in sampling artefacts that corrupt the data obtained. Published literature reports both positive (false enhancements of signal) and negative (loss of signal)
Lisa Ernle +2 more
semanticscholar +1 more source
Assessment of aldehyde contributions to PTR-MS m/z 69.07 in indoor air measurements
Environmental Science: Atmospheres, 2023 PTR m/z 69.07 commonly attributed to isoprene suffers interference from C5–C10 aldehydes indoors, especially when ozone is present. The contribution of nonanal could be quantified by using the protonated molecular ion, unlike the other aldehydes.
Lisa Ernle +6 more
semanticscholar +1 more source