Results 101 to 110 of about 7,880 (221)

Real-time monitoring of the work environment using ion-mobility spectrometry

Environmental and Occupational Health Practice
Objectives: Ion-mobility spectrometry (IMS) is a promising system for on-site real-time monitoring of volatile organic compounds (VOCs). Calibration curves derived from shifts in nominal arrival-time spectra of chemical substances relative to those of ...
Kazunari Takaya, Nobuyuki Shibata, Masayoshi Hagiwara, Mitsutoshi Takaya, Shiro Matoba   +4 more
doaj   +1 more source

Advantages of Alkali Metal Adduct Formation in Cyclic Ion Mobility‐Mass Spectrometry of O‐Methylated Cyclodextrin Isomers—Separation and Crossring Fragmentation

Chemistry–Methods, Volume 6, Issue 6, June 2026.
Cyclic ion mobility–tandem mass spectrometry (cIM‐MS/MS) enables rapid differentiation of O‐methylated cyclodextrin (MeCD) regioisomers. The method separates 2,3‐ and 2,6‐DIMEB (heptakis‐2,3‐ and ‐2,6‐di‐O‐methyl‐β‐cyclodextrins) and identifies them via characteristic crossring fragmentation.
Péter Soma Szakály, Arnold Steckel, Dávid Papp, Erzsébet Varga, Gitta Schlosser   +4 more
wiley   +1 more source

Imaging mass spectrometry approaches for the detection and localisation of drug compounds and small molecules in tissue [PDF]

A crucial and challenging aspect of the drug development process is the requirement to measure the distribution of a pharmaceutical compound and its metabolites in tissue.
Blatherwick, Eleanor Q.
core  

Enhanced capabilities for imaging gangliosides in murine brain with matrix-assisted laser desorption/ionization and desorption electrospray ionization mass spectrometry coupled to ion mobility separation

, 2016
The increased interest in lipidomics calls for improved yet simplified methods of lipid analysis. Over the past two decades, mass spectrometry imaging (MSI) has been established as a powerful technique for the analysis of molecular distribution of a ...
Ellis, Shane R., Heeren, Ron M. A., Jones, Emrys A., Skraskova, Karolina, Claude, Emmanuelle, Towers, Mark   +5 more
core   +1 more source

A Pseudo‐Two‐Dimensional Reaction–Diffusion Model for Rational Design of Antibacterial–Antioxidant Ag–ZnO/Fucoidan Nanocomposites

Engineering Reports, Volume 8, Issue 6, June 2026.
A pseudo‐two‐dimensional (P2D) reaction–diffusion framework is proposed to model reactive oxygen species (ROS) generation, transport, and scavenging in Ag–ZnO/Fucoidan nanocomposites. Spatially segregated ROS source (Ag–ZnO) and sink (fucoidan) domains are embedded into a one‐dimensional computational model, capturing nonlinear feedback between site ...
Mohamed Abu Shuheil, Maryam Saleem Mohammed Ali, Roopashree R., Subhashree Ray, Baraa Mohammed Yaseen, Kavitha V., Renu Sharma, Aashna Sinha, Naser Aslanian   +8 more
wiley   +1 more source

Metabolic profiling of Escherichia coli by ion mobility-mass spectrometry with MALDI ion source

, 2010
Comprehensive metabolome analysis using mass spectrometry (MS) often results in a complex mass spectrum and difficult data analysis resulting from the signals of numerous small molecules in the metabolome.
Albert J. Schultz, Geoffery Puzon, Prabha Dwivedi, Luying Xun, Tam, Maggie, Denis Langlais, Jackson, Shelley, Kimberly Kaplan, Amina Woods, Puzon, Geoffery, Schultz, Albert J, Langlais, Denis, William F. Siems, Siems, William F, Woods, Amina, Dwivedi, Prabha, Herbert H. Hill, Hill, Herbert H, Maggie Tam, Shelley Jackson, Xun, Luying   +20 more
core   +1 more source

Chiral Trapped-Headspace GC-QMS-IMS: Boosting Untargeted Benchtop Volatilomics to the Next Level

Chemosensors
In the field of quality analysis of food and flavoring products, gas chromatography–quadrupole mass spectrometry–ion mobility spectrometry (GC-QMS-IMS) is a powerful technique for the simultaneous detection of volatile organic compounds (VOCs) by both ...
Lukas Bodenbender, Sascha Rohn, Simeon Sauer, Markus Jungen, Philipp Weller   +4 more
doaj   +1 more source

High-Resolution Ion Mobility Spectrometry for Rapid Cannabis Potency Testing.

, 2018
We report initial results from an ion mobility spectrometry (IMS)-based analysis of natural cannabis samples and explore the possibility of using this technique to distinguish medical marijuana from illegal forms of the drug, as defined by Swiss ...
Kamrath, Michael Z, Weinmann, Wolfgang, Hädener, Marianne, Groessl, Michael   +3 more
core   +1 more source

Gas Chromatography‐Based Methods for Profiling Volatile Off‐Aroma Compounds in Grain Legumes: A Review

Legume Science, Volume 8, Issue 2, June 2026.
ABSTRACT Instrumental characterisation of the volatile organic compounds (VOCs), responsible for off‐aroma, is mainly centred on gas chromatography‐based techniques. Despite previous reviews that have addressed the chemical compounds and biosynthetic pathways of off‐aroma generation, to date, there is a lack of a comprehensive review that critically ...
Piyumi Chathurangi Wanniarachchi, K. G. Upul Kumarasinghe, Mauro Mocerino, Ranil Coorey   +3 more
wiley   +1 more source

Artificial neural networks for the prediction of peptide drift time in ion mobility mass spectrometry

BMC Bioinformatics, 2010
Background There is an increasing usage of ion mobility-mass spectrometry (IMMS) in proteomics. IMMS combines the features of ion mobility spectrometry (IMS) and mass spectrometry (MS).
Plasencia Manolo, Valentine Steve, Wang Bing, Raghuraman Sriram, Zhang Xiang   +4 more
doaj   +1 more source