Results 61 to 70 of about 11,070,300 (191)

Selected Ion Flow Tube–Mass Spectrometry for Online Monitoring of Submerged Fermentations: A Case Study of Sourdough Fermentation

open access: yes, 2016
Selected ion flow tube–mass spectrometry (SIFT-MS) has recently gained interest as an alternative method to traditional GC-MS for the detection of targeted volatile sample compounds, due to its ease of use, its speed and sensitivity, and its potential ...
Joeri Vercammen (1682731)   +3 more
core   +1 more source

Internal reactions of ion/molecule complexes from isomeric protonated formyl-and acetyl-naphthalenes [PDF]

open access: yes, 1988
Filges U, Grützmacher H-F. Internal reactions of ion/molecule complexes from isomeric protonated formyl-and acetyl-naphthalenes. International Journal of Mass Spectrometry and Ion Processes.
Hans-Friedrich Grützmacher   +3 more
core   +1 more source

Determining the chronology of deposition of natural fingermarks and inks on paper using secondary ion mass spectrometry [PDF]

open access: yes, 2014
This study thoroughly explores the use of time-of-flight secondary ion mass spectrometry (ToF-SIMS) for determining the deposition sequence of fingermarks and ink on a porous paper surface.
de Puit, Marcel   +18 more
core   +1 more source

Validation Study of Selected Ion Flow Tube-Mass Spectrometry (SIFT-MS) in Heritage Science: Characterization of Natural and Synthetic Paint Varnishes by Portable Mass Spectrometry

open access: yes, 2019
The identification at molecular level of organic materials in heritage objects as paintings requires in most cases the collection of micro-samples followed by micro-destructive analysis.
Degano I.   +3 more
core   +1 more source

On-line analysis of coffee roasting with ion mobility spectrometry–mass spectrometry (IMS–MS) [PDF]

open access: yes, 2018
On-line analysis of coffee roasting was performed using ion mobility spectrometry–mass spectrometry (IMS–MS) with corona discharge ionization. This is the first time that formation of volatile organic compounds (VOCs) during coffee roasting was monitored
R. Knochenmuss   +7 more
core   +1 more source

Characteristics of BVOCs from Fragrant Flowering Trees and Their Emission Along Urban Roadsides in Shanghai, China

open access: yesAtmosphere
Flowering street trees provide ecological services and health benefits to humans. In this study, three commonly used flowering street trees, Paulownia tomentosa (Thunb.) Steud., Melia azedarach L., and Magnolia grandiflora L., were selected for analysis ...
Xi Wang   +7 more
doaj   +1 more source

Aroma profile of dry-aged lamb and bull beef using Real-Time Selected Ion Flow Tube Mass Spectrometry (SIFT-MS)

open access: yes, 2019
The aroma profile of lamb and bull beef dry-aged in ageing bags using Real-Time Selected Ion Flow Tube Mass Spectrometry (SIFT-MS). Results were analysed by Principal Component Analaysis.
Debbie Frost (15396248)   +3 more
core  

Development and optimization of a gas chromatography/mass spectrometry method for the analysis of thermochemolytic degradation products of phthiocerol dimycocerosate waxes found in Mycobacterium tuberculosis. [PDF]

open access: yes, 2013
RATIONALE: The phthiocerol dimycocerosates (PDIMs) are certain stable and hydrophobic waxes found in the cell membrane of Mycobacterium tuberculosis, bacteria that cause an infectious disease of growing concern worldwide.
O'Sullivan, Denise M.   +14 more
core   +1 more source

Reactions of Ions with Ionic Liquid Vapors by Selected-Ion Flow Tube Mass Spectrometry

open access: yes, 2015
Room-temperature ionic liquids exert vanishingly small vapor pressures under ambient conditions. Under reduced pressure, certain ionic liquids have demonstrated volatility, and they are thought to vaporize as intact cation−anion ion pairs.
Jerry A. Boatz (1277064)   +5 more
core   +1 more source

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