Results 1 to 10 of about 10,542,246 (288)

Exhaled Breath Analysis Using Selected Ion Flow Tube Mass Spectrometry and Disease Severity in Heart Failure [PDF]

Metabolites, 2023
Exhaled breath volatile organic compounds (VOCs) are elevated in heart failure (HF). The ability of VOCs to predict long term cardiovascular mortality and morbidity has not been independently verified.
Wai Hong Wilson Tang, Lily Tranchito, Chonyang Albert, Zeynep G. Gul, Frank S. Cikach, David Grove, Yuping Wu, Raed A. Dweik   +7 more
doaj   +4 more sources

Quantitative selected ion flow tube mass spectrometry: The influence of ionic diffusion and mass discrimination [PDF]

Journal of the American Society for Mass Spectrometry, 2001
Selected ion flow tube mass spectrometry, (SIFT-MS), involves the partial conversion of mass-selected precursor ions to product ions in their reactions with the trace gases in an air sample that is introduced into helium carrier gas in a flow tube. The precursor and product ions are then detected and counted by a downstream quadrupole mass spectrometer.
David Smith, Patrik Spanel
exaly   +4 more sources

Recent developments and applications of selected ion flow tube mass spectrometry (SIFT‐MS) [PDF]

Mass Spectrometry Reviews, 2023
AbstractSelected ion flow tube mass spectrometry (SIFT‐MS) is now recognized as the most versatile analytical technique for the identification and quantification of trace gases down to the parts‐per‐trillion by volume, pptv, range. This statement is supported by the wide reach of its applications, from real‐time analysis, obviating sample collection of
Smith, D. (David), Španěl, P. (Patrik), Demarais, N., Langford, V. S., McEwan, M. J.   +4 more
openaire   +4 more sources

Botanical and geographical origin of Turkish honeys by selected‐ion flow‐tube mass spectrometry and chemometrics [PDF]

Journal of the Science of Food and Agriculture, 2020
AbstractBACKGROUNDHoney has a very important commercial value for producers as a natural product. Honey aroma is formed from the contributions of several volatile compounds, which are influenced by nectar composition, botanical origins, and location.
Ozcan-Sinir, Gulsah, Copur, Omer U., Barringer, Sheryl A.   +2 more
openaire   +5 more sources

Source apportionment and quantification of liquid and headspace leaks from closed system drug-transfer devices via Selected Ion Flow Tube Mass Spectrometry (SIFT-MS). [PDF]

PLoS ONE, 2021
A system to differentiate and quantify liquid and headspace vapor leaks from closed system drug-transfer devices (CSTDs) is presented. CSTDs are designed to reduce or eliminate hazardous drug (HD) exposure risk when compounding and administering HDs ...
Amos Doepke, Robert P Streicher
doaj   +3 more sources

Authentication of extra virgin Argan oil by selected-ion flow-tube mass-spectrometry fingerprinting and chemometrics

Food Chemistry, 2022
Recognized for its nutritional and therapeutic use, extra-virgin Argan Oil (EVAO) is frequently adulterated. Selected-Ion Flow-Tube Mass Spectrometry (SIFT-MS) spectra were applied to quantify adulterants (i.e., Argan oil of lower quality (LQAO), olive oil (OO), and sunflower oil (SO)) in EVAO.
Huiwen Yu, Ilias Marmouzi, Benahmed Ziyad   +2 more
exaly   +7 more sources

Salivary Volatile Organic Compound Analysis: An Optimised Methodology and Longitudinal Assessment Using Direct Injection Mass Spectrometry

Applied Sciences, 2023
Analysis of salivary volatile organic compounds (VOCs) may offer a novel noninvasive modality for disease detection. This study aims to optimise saliva headspace VOC analysis and assess longitudinal variation of salivary VOCs.
Bhamini Vadhwana, Jack James, Melina Pelling, Ilaria Belluomo, Piers R. Boshier, George B. Hanna   +5 more
doaj   +1 more source

Selected Ion Flow Tube Mass Spectrometry (SIFT-MS): a promising technology for the high throughput phenotyping of grape berry volatile fingerprints

IVES Technical Reviews, 2023
Over the last decade, there have been renewed efforts into wine grape breeding within the research community. Quick characterisation by phenotyping of quality traits, including aroma composition, remains challenging.
Thomas Baerenzung dit Baron, Marie Denat, Olivier Yobrégat, Valérie Simon, Alban Jacques, Olivier Geffroy   +5 more
doaj   +1 more source

SIFT-MS: Quantifying the Volatiles You Smell…and the Toxics You Don’t

Chemosensors, 2023
The human olfactory system is highly attuned to detection of a wide range of volatile organic compounds (VOCs), but the sensitivity varies considerably based on chemical functionality.
Vaughan S. Langford
doaj   +1 more source

Addition of fast gas chromatography to selected ion flow tube mass spectrometry for analysis of individual monoterpenes in mixtures [PDF]

Atmospheric Measurement Techniques, 2019
Soft chemical ionization mass spectrometry (SCI-MS) techniques can be used to accurately quantify volatile organic compounds (VOCs) in air in real time; however, differentiation of isomers still represents a challenge.
M. Lacko, M. Lacko, N. Wang, K. Sovová, P. Pásztor, P. Španěl   +5 more
doaj   +1 more source