Results 61 to 70 of about 1,913,440 (221)

Influência da amostragem e do tempo de armazenamento de resíduos de incêndios sobre a detecção de agentes acelerantes usando SPMEGC- MS [PDF]

, 2005
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.Este trabalho teve como objetivo avaliar a aplicação da microextração em fase sólida (SPME) na determinação de resíduos de líquidos ...
FERNANDES, Maria Eulália
core  

Identification of Volatile Organic Compounds Produced by Bacteria Using HS-SPME-GC–MS [PDF]

Journal of Chromatographic Science, 2013
The analysis of volatile organic compounds (VOCs) as a tool for bacterial identification is reported. Headspace solid-phase microextraction (HS-SPME) coupled to gas chromatography-mass spectrometry (GC-MS) was applied to the analysis of bacterial VOCs with the aim of determining the impact of experimental parameters on the generated VOC profiles.
Emma, Tait, John D, Perry, Stephen P, Stanforth, John R, Dean   +3 more
openaire   +2 more sources

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

Analysis of Selected Hop Aroma Compounds in Commercial Lager and Craft Beers Using HS-SPME-GC-MS/MS

, 2019
In recent years, hop aroma emerged as a key quality characteristic of popular beer styles. Accordingly, the instrumental analysis of hop derived odorants in beer advanced as a must have analytical technique for research and quality control purposes ...
Johanna Dennenlöhr (7879397), Sarah Thörner (7879400), Aneta Manowski (7879403), Nils Rettberg (7879406)   +3 more
core   +1 more source

Study on VOCs of Fishmeal during Storage Based on HS-SPME-GC-MS

ACS Omega
Fishmeal is widely used in the feed industry as the main protein material. The freshness grade directly affects the quality of the fishmeal. During the storage of fishmeal, the odor would change accordingly as the freshness grades decreased. To study the characteristic volatile organic compounds (VOCs) of fishmeal, stored at 25 °C and 80%RH with ...
Jie Geng, Ke Nie, Weixia Wang, Shanchen Jiang, Zhiyou Niu   +4 more
openaire   +3 more sources

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

Comparative study of volatile components from male and female flower buds of Populus × tomentosa by HS-SPME-GC-MS

, 2018
The differences of volatile components in male (MFB) and female flower buds (FFB) of Populus × tomentosa were analysed and compared by HS-SPME with GC-MS for the first time. A total of 34 compounds were identified.
Liang Xu (102656), Zhimao Chao (5389709), Haiping Liu (182575), Yucui Ma (844614), Ruiqi Li (769510), Cui Wu (4432669)   +5 more
core   +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

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

Real‐Time and Non‐Invasive Detection of Respiratory Viral Infections Using an Intelligent Odor Monitoring System (IOMS)

Advanced Science, Volume 13, Issue 51, 14 September 2026.
An intelligent odor monitoring system integrates an IVC animal model, gas sensor array, real‐time resistance readout, and machine‐learning analysis to continuously monitor infection‐associated odor changes. The platform captures longitudinal sensor responses, distinguishes infected from healthy states, and supports early‐stage respiratory viral ...
Yajie Shen, Weifeng Yuan, Long Li, Yucheng Zheng, Kenan Liu, Hegeng Li, Hua‐Yao Li, Yongliang Zhao, Binzhou Ying, Lanpeng Guo, Wenjian Zhang, Shu‐Ming Kuo, Zirui Zhang, Yufan Deng, Bohan Yin, Zhaocheng Luo, Ke Xu, Huan Liu   +17 more
wiley   +1 more source