Results 121 to 130 of about 2,465,079 (227)

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

Efficient One‐Pot Synthesis of 1,2,4,5‐Tetrasubstituted Imidazoles Using GO@SiO2@[(CH2)3Im][Cl] as a Novel Nanocomposite Under MW Irradiation

ChemistryOpen, Volume 15, Issue 9, September 2026.
This study presents the development of a novel nanocomposite catalyst, GO@SiO2@[(CH2)3Im][Cl], for the efficient one‐pot synthesis of 1,2,4,5‐tetrasubstituted imidazoles under environmentally benign conditions. The catalyst design incorporates graphene oxide, silica, and an imidazolium‐functionalized layer, creating a unique catalytic environment for ...
Mohamed Abu Shuheil, Afaq Mahdi Ali, Mekkanti Manasa Rekha, Subhashree Ray, Talal Aziz Qassem, T. Krithiga, Renu Sharma, Prakhar Tomar, Reza Mohammadi   +8 more
wiley   +1 more source

Dual-drift Tube Ion Mobility Spectrometry Based on Corona Discharge Ionization Source

Zhipu Xuebao
Ion mobility spectrometry (IMS) is a trace detection technique operating at atmospheric pressure. It is widely utilized in various fields, such as explosives and drug detection, chemical warfare agent detection, and biomedical applications, due to its ...
Xu ZHANG, Yu SONG, Yuan-jiang LUO, Wan-jun LI, Ling-wen KONG, Lei XIA, Ya-wei LIU, Cheng-yin SHEN, Chao-qun HUANG, Yan-nan CHU   +9 more
doaj   +1 more source

SANDIA REPORT Ion Mobility Spectrometer / Mass Spectrometer (IMS-MS) Ion Mobility Spectrometer / Mass Spectrometer (IMS-MS)

, 2020
The use of Ion Mobility Spectrometry (IMS) in the Detection of Contraband Sandia researchers use ion mobility spectrometers for trace chemical detection and analysis in a variety of projects and ...
Deborah E Hunka, Daniel E Austin
core  

Transversal Modulation Ion Mobility Spectrometry (IMS) Coupled with Mass Spectrometry (MS): Exploring the IMS-IMS-MS Possibilities of the Instrument

, 2016
A prototype is introduced based on the transversal modulation ion mobility spectrometry (TMIMS) technique, which provides a continuous output of mobility-selected ions, greatly easing the synchronization between different analyzing stages.
J. Cuevas (1679692), G. Vidal-de-Miguel (1679698), C. Barrios (1679701), M. Macía (1679695)   +3 more
core   +1 more source

The first discovery of a shocked, metasomatised CV3 chondrule‐fragment in a (Al,Cu)‐bearing micrometeorite

Meteoritics &Planetary Science, Volume 61, Issue 9, Page 2269-2283, September 2026.
Abstract We report the discovery of the second (Al,Cu)‐alloy–bearing micrometeorite, FB‐A2, recovered from Mount Gariglione (southern Italy), representing the sixth such occurrence worldwide. Although chondritic in nature, FB‐A2 differs markedly from previously described microspherules.
Giovanna Agrosì, Paola Manzari, Daniela Mele, Johan Villeneuve, Tiziano Catelani, Mattew J. Genge, Luca Bindi   +6 more
wiley   +1 more source

Multi-Capillary Column-Ion Mobility Spectrometry of Volatile Metabolites Emitted by Saccharomyces Cerevisiae

Metabolites, 2014
Volatile organic compounds (VOCs) produced during microbial fermentations determine the flavor of fermented food and are of interest for the production of fragrances or food additives.
Christoph Halbfeld, Birgitta E. Ebert, Lars M. Blank   +2 more
doaj   +1 more source

Ion mobility mass spectrometry of isomeric RNA biomarkers [PDF]

, 2018
Ion mobility spectrometry is an analytical technique that separates gaseous ions depending on their mobility in a gas filled cell under the influence of an electric field.
Mwangi, Joseph Njoroge, NC DOCKS at The University of North Carolina at Greensboro   +1 more
core  

Fingerprinting of Green Arabica Coffee Volatile Organic Compounds (VOCs): HS-GC-IMS Versus GC × GC-MS

International Journal of Food Science
This study compared two nontargeted analytical techniques—headspace gas chromatography–ion mobility spectrometry (HS-GC-IMS) and comprehensive two-dimensional gas chromatography–mass spectrometry (GC × GC-MS)—to fingerprint the volatile organic compounds
Matteo Bordiga, Vincenzo Disca, Marcello Manfredi, Elettra Barberis, Francesca Carrà, Luciano Navarini, Valentina Lonzarich, Marco Arlorio   +7 more
doaj   +1 more source

Characterisation of pharmaceutical and polymer formulations by novel mass spectrometry approaches [PDF]

Since its inception at the beginning of the twentieth century, the field of mass spectrometry has progressed from the realm of physics to an analytical tool that can be found in many fields of science.
Snelling, Jonathon R.
core