Results 31 to 40 of about 8,646 (142)

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

Comparative analysis of characteristic volatile compounds in five types of Yunnan dry-cured hams by HS-GC-IMS and HS-SPME-GC-MS

Food Science of Animal Products, 2023
The quality characteristics of dry-cured hams from different regions of Yunnan province were studied by analyzing five types of Yunnan dry-cured hams (Xuanwei ham, Sanchuan ham, Nuodeng ham, Saba ham, and Heqing ham) using headspace-gas chromatography ...
Zijiang Yang, Ying He, Guozhou Liao, Xilin Ding, Donglin Lü, Lihong Zhang, Mei Tian, Changrong Ge, Guiying Wang   +8 more
doaj   +1 more source

Mass Spectrometry in Authentication and Forensic Approaches for Determining the Origin of Hazardous Chemicals

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Identification of a chemical agent yields insights into its physicochemical properties. By examining the intrinsic characteristics and environment of a compound, information about its history can be gathered. The main objective of authentication/forensic approaches to chemicals is to trace the history of the compound's origin, regardless of ...
Carla Orlandi, Grégoire Delaporte, Christine Albaret, Emmanuel Joubert, Anne Bossée, Emilien L. Jamin, Laurent Debrauwer   +6 more
wiley   +1 more source

Detection and analysis of VOCs in chili pepper based on HS-SPME-GC × GC-TOFMS and HS-SPME-GC-MS techniques

Vegetable Research
Chili pepper (Capsicum annuum L.) is highly preferred by consumers owing to its distinctive flavor. Volatile organic compounds (VOCs) significantly influences the aromatic characteristics of chili peppers, thereby impacting their overall fruit quality ...
Chenxi Ji, Sihui Guan, Chenxu Liu, Chao Yu, Zhuping Yao, Hongjian Wan, Qingjing Ye, Guozhi Zhou, Huasen Wang, Yuan Cheng   +9 more
doaj   +1 more source

Performance evaluation of a scent transfer unit for sampling of explosives and their residues to investigate nuisance alerts

Journal of Forensic Sciences, EarlyView.
Abstract Volatile organic compounds associated with explosives such as Composition C‐4 serve as important targets for canine training as well as field analysis. In parallel, 1‐bromooctane (1‐BO) is a benchmark to contextualize canine performance and aid interpretation of results.
Himanshi Upadhyaya, Alexis Hecker, John Goodpaster   +2 more
wiley   +1 more source

Volatile Compounds in Feathers of the Scarlet Macaw (Ara macao) Reflect Sex and Pair‐Bond Status

Integrative Zoology, EarlyView.
Scarlet macaws exhibit sex‐ and pair‐related differences in plumage volatile composition, with males showing greater chemical richness. Partnered individuals differ in specific compound classes, whereas no clear association with immune function was detected. These results support a potential role for olfactory cues in sexual and social communication in
Elisa Espartosa, Isabel Barja, José Martin, María del Carmen Hernández   +3 more
wiley   +1 more source

Characterization of Volatile and Flavonoid Composition of Different Cuts of Dried Onion (Allium cepa L.) by HS-SPME-GC-MS, HS-SPME-GC×GC-TOF and HPLC-DAD

Molecules, 2020
Onion is widely used worldwide in various forms for both food and medicinal applications, thanks to its high content of phytonutrients, such as flavonoids and volatile sulfur compounds.
Lorenzo Cecchi, Francesca Ieri, Pamela Vignolini, Nadia Mulinacci, Annalisa Romani   +4 more
doaj   +1 more source

Machine Learning–Based Optimization of Phthalate Extraction Conditions Using HS‐INME‐GC/MS Data

Journal of Chemometrics, Volume 40, Issue 10, October 2026.
ABSTRACT Optimization of extraction conditions in GC/MS analysis remains challenging because experimental variables can interact in complex and nonlinear ways. In this study, a machine learning based chemometric workflow was applied to optimize headspace in‐needle microextraction GC/MS (HS‐INME‐GC/MS) conditions for four phthalates: dimethyl phthalate (
Hyeyoung Jung, Sunyoung Bae, Jooyoung Kim   +2 more
wiley   +1 more source

Effects of Different Drying Methods on the Physicochemical Properties and Flavor Profile of Chaenomeles speciosa (Sweet) Nakai

eFood, Volume 7, Issue 5, October 2026.
Comparative assessment of different drying methods on the physicochemical properties and flavor quality of Chaenomeles speciosa. Changes in soluble sugars, organic acids, phenolic compounds and volatiles in Chaenomeles speciosa following different drying treatments were determined.
Houyu Kang, Hong Quan, Qiaojun Cai, Xiaozhong Lan, Xinbo Guo   +4 more
wiley   +1 more source

Vertical Farm Versus Glasshouse: Comparative Analysis of Growth, Antioxidants, and Volatile Profiles in Four Basil Varieties

Plant-Environment Interactions, Volume 7, Issue 5, October 2026.
ABSTRACT Global population growth and climate change are placing unprecedented pressure on food systems, threatening crop productivity and nutritional quality. Vertical farming, as a form of totally controlled‐environment agriculture, offers an innovative approach to optimizing plant growth and enhancing the quality of high‐value crops such as basil ...
Martina Pičmanová, Nick Bennett, Lidiya Babenko, Yogeswari Rajarathinam, Simon Pont, Ceri Austin, Tanveer Khan, Gordon McDougall, Derek Stewart   +8 more
wiley   +1 more source