Results 231 to 240 of about 10,542,246 (288)

Relative Quantitative Analysis of Site-Specific N-Linked Glycosylation in Hyperglycosylated Interferon-β via Mass Spectrometry. [PDF]

Int J Mol Sci
Moon D, Kim G, Park M, Park B, Kim NY, Son W, Shin YK, Song K.   +7 more
europepmc   +1 more source

Validation of the U.S. Food and Drug Administration's Method for Detection of Per- and Polyfluoroalkyl Substances Analytes in Food and Feed: First Action 2025.06. [PDF]

J AOAC Int
Sunkara M, Peprah E, Young W, Popol S, Santiago MM, Ng B, Fisher CM, DeJager L, Genualdi S.   +8 more
europepmc   +1 more source

Achieving Single-Cell Resolution via Desorption Electrospray Ionization Mass Spectrometry Imaging (DESI-MSI) on Different Platforms. [PDF]

Anal Chem
Colwell N, Chen D, Bhusal D, Peng Z, Yang Z.   +4 more
europepmc   +1 more source

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Account: On the Features, Successes and Challenges of Selected Ion Flow Tube Mass Spectrometry

European Journal of Mass Spectrometry, 2013
The major features of the selected ion flow tube mass spectrometry (SIFT-MS) analytical method that was conceived and designed for the analysis, in real time, of air obviating sample collections into bags or extraction by pre-concentration of trace compounds onto surfaces are reviewed.
David Smith, Patrik Spanel
exaly   +3 more sources

Focusing on Volatile Organic Compounds of Natural Resins by Selected-Ion Flow Tube-Mass Spectrometry

Journal of the American Society for Mass Spectrometry, 2022
The analysis of archeological artifacts, due to the high value of antique objects, is preferably performed by nondestructive, noninvasive, and in situ techniques. At present, the most common in situ protocols used for the analysis of organic materials are spectroscopic approaches.
Camilla Guerrini, Federica Nardella, Annachiara Morganti, Jacopo La Nasa, Ilaria Degano, Erika Ribechini   +5 more
openaire   +3 more sources

Selected Ion Flow Tube Mass Spectrometry for On-Line Trace Gas Analysis in Biology and Medicine

European Journal of Mass Spectrometry, 2007
Selected ion flow tube mass spectrometry, (SIFT-MS), is a technique for simultaneous real-time quantification of several trace gases in air and exhaled breath. It relies on chemical ionization of the trace gas molecules in air/breath samples introduced into helium carrier gas, using H 3 O
Patrik Spanel
exaly   +3 more sources

In vitro discrimination of wound-associated bacteria by volatile compound profiling using selected ion flow tube-mass spectrometry [PDF]

Journal of Applied Microbiology, 2017
© 2017 The Society for Applied Microbiology Aims: To determine if bacterial species responsible for clinically relevant wound infection produce specific volatile profiles that would allow their speciation. Methods and Results: Selected ion flow tube-mass
Reynolds D M, A M Lovering
exaly   +2 more sources

Selected ion flow tube mass spectrometry

2020
Selected ion flow tube mass spectrometry (SIFT-MS) was first realized as a viable technique for the analysis of trace gases in ambient air in 1996 and its potential for direct online, real-time analysis became immediately obvious. Instrumental development has gone through several phases from a large laboratory-based device to the current mobile ...
Smith, D., Španěl, P. (Patrik), Hanna, G. B., Dweik, R.A.   +3 more
openaire   +2 more sources

Analysis of ketones by selected ion flow tube mass spectrometry

Rapid Communications in Mass Spectrometry, 2003
Abstract A selected ion flow tube mass spectrometry (SIFT‐MS) study of the reactions of H 3 O + , NO + and O 2 +
David, Smith, Tianshu, Wang, Patrik, Spanĕl   +2 more
openaire   +2 more sources

Selected ion flow tube mass spectrometry of urine headspace

Rapid Communications in Mass Spectrometry, 1999
We describe the use of our selected ion flow tube mass spectrometric technique (SIFT-MS) for the analysis of the headspace above urine. Ammonia, nitric oxide, acetone, ethanol and methanol are identified as the dominant species. As expected, the ammonia is increased in the headspace by making the urine alkaline and the nitric oxide is increased by ...
D, Smith, P, Spanĕl, T A, Holland, W, al Singari, J B, Elder   +4 more
openaire   +2 more sources