Results 51 to 60 of about 2,465,079 (227)

External Second Gate, Fourier Transform Ion Mobility Spectrometry: Parametric Optimization for Detection of Weapons of Mass Destruction

Sensors, 2004
: Ion mobility spectrometry (IMS) is recognized as one of the most sensitive and robust techniques for the detection of narcotics, explosives and chemical warfare agents. IMS is widely used in forensic, military and security applications.
Edward E. Tarver
doaj   +1 more source

Limitations of GC-QTOF-MS Technique in Identification of Odorous Compounds from Wastewater: The Application of GC-IMS as Supplement for Odor Profiling

Atmosphere, 2021
Odorous emissions from wastewater treatment plants (WWTPs) cause negative impacts on the surrounding areas and possible health risks on nearby residents. However, the efficient and reliable identification of WWTPs’ odorants is still challenging.
Wei Gao, Xiaofang Yang, Xinmeng Zhu, Ruyuan Jiao, Shan Zhao, Jianwei Yu, Dongsheng Wang   +6 more
doaj   +1 more source

Mass spectrometric analysis of pilus assembly, amyloid fibril formation, and membrane proteins in their native state [PDF]

, 2012
Structural analysis of proteins and their complexes is crucial to understanding protein function. This thesis demonstrates the application of mass spectrometry (MS) to the study of pilus assembly on Gram-negative bacteria and amyloid formation in ...
Leney, Aneika Corrine
core   +6 more sources

Research Progress in the Application of Gas Chromatography-Ion Mobility Spectrometry in Food Authentication [PDF]

Shipin Kexue
Gas chromatography-ion mobility spectrometry (GC-IMS) is a sensitive analytical technology for the detection, identification and monitoring of trace substances in different matrices, which enables secondary rapid separation and high-precision qualitative
ZHANG Biying, SUI Yumeng, ZHANG Xin, LI Yongjie, KONG Baohua, LIU Haotian, CHEN Qian
doaj   +1 more source

Discrimination and Characterization of the Volatile Organic Compounds in Schizonepetae Spica from Six Regions of China Using HS-GC-IMS and HS-SPME-GC-MS

Molecules, 2022
Volatile organic compounds (VOCs) are the main chemical components of Schizonepetae Spica (SS), which have positive effects on the quality evaluation of SS.
Chao Li, Huiying Wan, Xinlong Wu, Jiaxin Yin, Limin Zhu, Hanjiang Chen, Xinbo Song, Lifeng Han, Wenzhi Yang, Heshui Yu, Zheng Li   +10 more
doaj   +1 more source

Comparison of Different Ion Mobility Setups using Poly(ethylene oxide) PEO Polymers: Drift Tube, TIMS and T-Wave

, 2017
peer reviewedOver the years, polymer analyses using ion mobility-mass spectrometry (IM-MS) measurements have been performed on different ion mobility spectrometry (IMS) setups.
Jordens, Jan, Haler, Jean, De Pauw, Edwin, Jan Jordens, Johann Far, Massonnet, Philippe, Kune, Christopher, Dugourd, Philippe, Philippe Massonnet, Comby-Zerbino, Clothilde, Far, Johann, Jean R. N. Haler, Christopher Kune, Ynze Mengerink, Philippe Dugourd, Edwin De Pauw, Mengerink, Ynze, Chirot, Fabien, Clothilde Comby-Zerbino, Maarten Honing, Honing, Maarten, Fabien Chirot   +21 more
core   +1 more source

A Novel Method Based on Headspace-Ion Mobility Spectrometry for the Detection and Discrimination of Different Petroleum Derived Products in Seawater

Sensors, 2021
The objective of the present study is to develop an optimized method where headspace-ion mobility spectrometry is applied for the detection and discrimination between four petroleum-derived products (PDPs) in water.
Lucas Jaén-González, Ma José Aliaño-González, Marta Ferreiro-González, Gerardo F. Barbero, Miguel Palma   +4 more
doaj   +1 more source

Photo‐Switchable Molecular Module Programming PET Biodegradation in Aquatic Environments

Advanced Functional Materials, EarlyView.
We address the plastic durability paradox by integrating an itaconic acid–derived pyrrolidone module into polymer backbones. Sunlight in water triggers Norrish Type I ring‐opening and hydrophilization, enabling rapid biodegradation into nontoxic minerals.
Mohammad Asif Ali, Jixin Zheng, Satoshi Wakai, Jie Liu, Hidetaka Nomaki, Misato Tsukatani, Noriyuki Isobe, Jingcheng Sang, Yuriko Aoki, Hideo Okamura, Daisuke Sasaki, Chiaki Ogino, Yuzo Yamazaki, Takashi Nishikaze, Kenji Takada, Maiko K. Okajima, Tatsuo Kaneko   +16 more
wiley   +1 more source

Development and Application of an Ion Gate Driving Power Supply for Inverse Ion Mobility Spectrometry

Zhipu Xuebao
Ion mobility spectrometry (IMS) is a trace detection technique. It realizes rapid separation and detection of ions by capitalizing on the disparities in the mobility velocities of ions in an electric field under atmospheric pressure.
Wan-jun LI, Yuan-jiang LUO, Ling-wen KONG, Jia-huan HAO, Yang LI, Lei XIA, Ya-wei LIU, Cheng-yin SHEN, Chao-qun HUANG, Yan-nan CHU   +9 more
doaj   +1 more source

Multiscale Coupling From Mastication to Retronasal Aroma Perception: The PG‐DTCFN Model and Multiphysics Simulation

Advanced Science, EarlyView.
Using grilled lamb skewers as a model system, this work builds a multiscale coupling framework from oral processing to retronasal aroma perception, reveals dual‐kinetic release patterns and Electroencephalogram‐characterized central encoding features, and proposes an interpretable physics‐guided deep learning model validated by multiphysics simulation,
Che Shen, Xiongfeng He, Zihao Li, Zidong Chen, Jiajin Sun, Xinyu Jiang, Yunhui Zhang, Lizhang Wu, Ran Wang, Jingnan Lu, Bo Wang, Kezhou Cai, Baocai Xu   +12 more
wiley   +1 more source