Results 21 to 30 of about 50,630 (254)

Sub-parts per billion detection of trace volatile chemicals in human breath using Selected Ion Flow Tube Mass Spectrometry

BMC Research Notes, 2008
Background Selected ion flow tube mass spectrometry (SIFT-MS) allows the real time quantification of trace gases in air. Due to its tolerance of high humidity levels the technique is particularly suited to the chemical analysis of breath.
Ross Brian M
doaj   +1 more source

Selected Ion Flow-Drift Tube Mass Spectrometry: Quantification of Volatile Compounds in Air and Breath [PDF]

Analytical Chemistry, 2015
A selected ion flow-drift tube mass spectrometric analytical technique, SIFDT-MS, is described that extends the established selected ion flow tube mass spectrometry, SIFT-MS, by the inclusion of a static but variable E-field along the axis of the flow tube reactor in which the analytical ion-molecule chemistry occurs.
Spesyvyi, A. (Anatolii), Smith, D., Španěl, P. (Patrik)   +2 more
openaire   +3 more sources

The SIFT-MS fingerprint of Vitis vinifera L. cv. Syrah berries is stable over the second part of maturation under warm conditions of climate

OENO One, 2022
Wine grape breeding for fungal resistance has been very dynamic worldwide over the last decade. The quick phenotyping of genotype quality traits, including aroma composition, remains challenging.
Olivier GEFFROY, Thomas Baerenzung dit Baron, Olivier Yobrégat, Marie Denat, Valérie Simon, Alban Jacques   +5 more
doaj   +1 more source

SIFT-MS for Livestock Emission Characterization: Application of Similarity Coefficients

Chemical Engineering Transactions, 2012
SIFT-MS (selected ion flow tube mass spectrometry) is used to construct libraries for emissions from pig and broiler farming activities. Libraries are based on full mass scans in m/z range 15 to 250 using HO+, NO+ and O2 precursor ions.
P. Heynderickx, K. Van Huffel, J. Dewulf, H. Van Langenhove   +3 more
doaj   +1 more source

Breath Analysis as a Potential and Non-Invasive Frontier in Disease Diagnosis: An Overview

Metabolites, 2015
Currently, a small number of diseases, particularly cardiovascular (CVDs), oncologic (ODs), neurodegenerative (NDDs), chronic respiratory diseases, as well as diabetes, form a severe burden to most of the countries worldwide.
Jorge Pereira, Priscilla Porto-Figueira, Carina Cavaco, Khushman Taunk, Srikanth Rapole, Rahul Dhakne, Hampapathalu Nagarajaram, José S. Câmara   +7 more
doaj   +1 more source

Identification of Corrosive Volatile Compounds Found in the Headspace of Chicken Noodle Soup Retorted in Metal Cans

International Journal of Food Science, 2023
This study investigated the development of volatile compounds in the headspace of canned chicken noodle soup (and sought to develop appropriate testing methods).
Yajun Wu, Ken Ruffley, Elliot Dhuey, Christopher M. Hadad, Melvin A. Pascall   +4 more
doaj   +1 more source

A matrix-centered view of mass spectrometry platform innovation for volatilome research

Frontiers in Molecular Biosciences
Volatile organic compounds (VOCs) are carbon-containing molecules with high vapor pressure and low water solubility that are released from biotic and abiotic matrices.
Andras Szeitz, Andras Szeitz, Andras Szeitz, Annika G. Sutton, Steven J. Hallam, Steven J. Hallam, Steven J. Hallam, Steven J. Hallam, Steven J. Hallam, Steven J. Hallam, Steven J. Hallam   +10 more
doaj   +1 more source

Operando characterisation of the impact of carbon monoxide on PEMFC performance using isotopic labelling and gas analysis

Journal of Power Sources Advances, 2020
Impurities in hydrogen can have a detrimental effect on the performance of polymer electrolyte membrane fuel cells (PEMFCs) used in automotive applications.
Hans Becker, Thomas Bacquart, Mark Perkins, Niamh Moore, Jari Ihonen, Gareth Hinds, Graham Smith   +6 more
doaj   +1 more source

Effect of pH, Reducing Sugars, and Protein on Roasted Sunflower Seed Aroma Volatiles

Foods, 2023
Sunflower seeds are a popular snack in many countries, such as the United States, China, and Spain. Sunflower seeds are typically roasted to create desirable aromas before being eaten.
Jessica Laemont, Sheryl Barringer
doaj   +1 more source

Diagnosis of Clostridioides difficile infection by analysis of volatile organic compounds in breath, plasma, and stool: A cross-sectional proof-of-concept study.

PLoS ONE, 2021
Clostridioides difficile infection (CDI) is an important infectious cause of antibiotic-associated diarrhea, with significant morbidity and mortality. Current diagnostic algorithms are based on identifying toxin by enzyme immunoassay (EIA) and toxin gene
Teny M John, Nabin K Shrestha, Gary W Procop, David Grove, Sixto M Leal, Ceena N Jacob, Robert Butler, Raed Dweik   +7 more
doaj   +1 more source