Results 71 to 80 of about 5,630 (192)

Development of Tandem Ion Mobility Spectrometry with High-voltage Fragmentation Unit at Atmospheric Pressure for Explosives Detection

Zhipu Xuebao
Trace explosive detection is an essential aspect for ensuring public safety. Ion mobility spectrometry (IMS) is an effective technique for detecting explosives and compounds related to explosives.
Kang-yi LIU, Tian-xin XIAN, Ling-feng LI, Yun-jing ZHANG, Xing-li HE, Peng LI   +5 more
doaj   +1 more source

Advanced Technologies for the Diagnosis of Pulmonary Tuberculosis Using Exhaled Breath Samples: A Systematic Scoping Review

Tropical Medicine &International Health, EarlyView.
ABSTRACT Objectives Non‐invasive methods based on exhaled breath samples have emerged as promising alternatives for the diagnosis of pulmonary tuberculosis, especially in settings where sputum collection is challenging and laboratory infrastructure is limited.
F. L. Adão‐Araújo, B. G. Ferreira, R. Pontarolo, F. S. Tonin, S. M. Raboni   +4 more
wiley   +1 more source

FluoroMatch IM: An Interactive Software for PFAS Analysis by Ion Mobility Spectrometry

Environmental Science & Technology
Per- and polyfluoroalkyl substances (PFASs) are often present in complex mixtures at trace levels in environmental samples, posing difficulties for analytical chemists. Ion mobility offers highly replicable identifiers, enabling the use of community-based libraries for PFAS annotation in nontargeted analysis.
Rachel Smolinski, Jeremy P. Koelmel, Paul Stelben, David Weil, David Godri, David Schiessel, Michael Kummer, Sarah M. Stow, Sheher Mohsin, Lauren Royer, Alan McKenzie-Coe, Thomas Lubinsky, Daniel DeBord, Olivier Chevallier, Emma E. Rennie, Krystal J. Godri Pollitt, Carrie McDonough   +16 more
openaire   +2 more sources

Ginseng Volatile Oil Alleviates Loperamide‐Induced Constipation in Mice by Regulating the Microbiota/Metabolism/Neural Network

Food Frontiers, Volume 7, Issue 2, March 2026.
GVO relieves constipation mechanisms. GVO decreased the abundance of Firmicutes and increased that of Bacteroidota, thereby ameliorating Lop‐induced gut microbial imbalances. Then the level of 8,9‐DiHETrE was raised, whereas the level of 15(S)‐HpETE was lowered.
Yanan Xu, Mingyue Wang, Meixin Chen, Zhilong Wang, Baoyue Zhang, Xin Wang, Liying Shang, Lequn Zhang, Bowen Sui, Wei Zhang, Jingzhou Zhang, Xueyuan Bai   +11 more
wiley   +1 more source

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

Recent Advancements in the Characterization of D‐Amino Acid and Isoaspartate Post‐Translational Modifications

Mass Spectrometry Reviews, Volume 45, Issue 2, Page 218-230, March/April 2026.
ABSTRACT One of the great triumphs of mass spectrometry‐based peptide and protein characterization is the characterization of their modifications as most modifications have a characteristic mass shift. What happens when the modification does not change the mass of the peptide?
Samuel Okyem, Jonathan V. Sweedler
wiley   +1 more source

Practical Applications of Secondary/Extractive Electrospray Ionization (SESI): A Versatile Tool for Real‐Time Chemical Analysis

Mass Spectrometry Reviews, Volume 45, Issue 2, Page 392-428, March/April 2026.
ABSTRACT In the 1980s, researchers discovered the remarkable ability of electrospray plumes to effectively ionize gas‐phase molecules via secondary ionization. Around 20 years later—coinciding with the ambient mass spectrometry revolution—secondary electrospray ionization (SESI) and extractive electrospray ionization (EESI) coupled to mass spectrometry
Xin Luo, Huiling Wang, Xiaolan Hu, Sasho Gligorovski, Xue Li, Pablo Sinues   +5 more
wiley   +1 more source

Progress in Surface‐Enhanced Raman Scattering‐Based Volatile Organic Compounds Detection: Materials, Application, and Prospects

Rare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang, Lin Qiu, Jian Yu, Wen Ma, Xiaoyu Song, Mingjian Zhang, Yujiao Xie, Aochi Liu, Li Sun, Xiangyu Meng, Jie Lin, Xiaotian Wang   +11 more
wiley   +1 more source

Illicit Drug‐Derived Volatile Organic Compounds as Markers for Application in Noncontact Detection Technology

The Chemical Record, Volume 26, Issue 3, March 2026.
This review highlights the characteristic odor markers of illicit drugs, emphasizing volatile markers from both natural and synthetic sources, and explores the shift from canine‐based detection to emerging noncontact sensing technologies. Illicit drug use remains a global concern, requiring effective detection methods to counter evolving concealment ...
Minwoo Kim, Solpa Lee, Anmo J. Kim, Cong Wang, Yongwoo Jang   +4 more
wiley   +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