Results 41 to 50 of about 7,896 (250)

Identification of Characteristic Flavor Substances of Jingyang Fu Brick Tea by Gas Chromatography-Ion Mobility Spectrometry and Headspace Solid Phase Microextraction-Gas Chromatography-Mass Spectrometry [PDF]

Shipin Kexue, 2023
In order to determine the characteristic flavor of Jingyang Fu brick tea, a national geographical indication product, the volatile compounds of Jingyang Fu brick tea, Anhua Fu brick tea and four other dark teas were analyzed by gas chromatography-ion ...
HOU Xiaohui, ZHANG Ting, ZHANG Meng, LUO Haojie, YUE Yuan, XIAO Chunge, YUE Tianli
doaj   +1 more source

Application of GC-IMS in Detection of Food Flavor Substances

IOP Conference Series: Earth and Environmental Science, 2020
Abstract Gas chromatography-ion migration spectroscopy (GC-IMS) is an effective method for the separation and sensitive detection of volatile organic compounds (Vocs). This technology combines the advantages of high separation ability of GC and rapid response of IMS, with fast response speed, high sensitivity, convenient operation and ...
Wen He, Fang Ren, Yingqian Wang, Xing Gao, Xiaoxia Wang, Xia Dai, Jibing Song   +6 more
openaire   +1 more source

Simultaneous assessment of urinary and fecal volatile organic compound analysis in De Novo Pediatric IBD [PDF]

, 2019
Endoscopic evaluation is mandatory in establishing the diagnosis of pediatric inflammatory bowel disease (IBD), but unfortunately carries a high burden on patients.
Ayada, Ibrahim, Benninga, Marc A., Bosch, Sofie, Brizzio Brentar, Marina, Covington, James A., de Boer, Nanne K. H., de Meij, Tim G. J., el Manouni el Hassani, Sofia, Lemmen, Jesse P. M., Wicaksono, Alfian   +9 more
core   +1 more source

Indoor and Outdoor Air Profiling with GC-IMS

, 2020
Air Quality research is a trending topic that has received increasing attention from scientific community around the globe. Due to the high relevance of recent discoveries in areas like medicine or chemistry, analytical techniques with high sensitivity and selectivity play a crucial role in the characterization of the ambient air composition.
Moura, Pedro, Vassilenko, Valentina, Fernandes, Jorge, Santos, Paulo   +3 more
openaire   +2 more sources

Analyzing changes of volatile components in dried pork slice by gas chromatography-ion mobility spectroscopy

CyTA - Journal of Food, 2020
The volatile organic compounds (VOCs) in different processing stages of dried pork slices (DPS) were analyzed by gas chromatography-ion mobility spectrometry (GC-IMS), which was used to construct the GC-IMS odor fingerprint spectrometry.
Mingjie Chen, Tong Chen, Xingpu Qi, Daoli Lu, Bin Chen   +4 more
doaj   +1 more source

Combined LC-MS-based metabolomics and GC-IMS analysis reveal changes in chemical components and aroma components of Jujube leaf tea during processing

Frontiers in Plant Science, 2023
Making tea from jujube leaves changed the chemical composition and aroma composition of jujube leaves. Here, Through LC-MS, GC-IMS, and GC-MS technology, we have revealed the effect of jujube leaf processing changes on metabolites.
Nan Jiang, Nan Jiang, Shujuan Hou, Yuye Liu, Peixing Ren, Nuoyu Xie, Ye Yuan, Qing Hao, Mengjun Liu, Mengjun Liu, Zhihui Zhao, Zhihui Zhao, Zhihui Zhao   +12 more
doaj   +1 more source

Discriminatory ability of gas chromatography-ion mobility spectrometry to identify patients hospitalised with COVID-19 and predict prognosis [PDF]

, 2022
Objectives Rapid diagnostic and prognostic tests for COVID-19 are urgently required. We aimed to evaluate the diagnostic and prognostic ability of breath analysis using gas chromatography-ion mobility spectrometry (GC-IMS) in hospitalised patients with ...
Ahmed, Adam, Bird, Paul, Brodrick, Emma, Brosnan, James G., Covington, James A., Daulton, Emma, Haldar, Pranabashis, Kim, Jee Whang, Leach, Jack, Nazareth, Joshua, Pan, Daniel, Pareek, Manish, Sahota, Amandip S., Tang, Julian W., Wicaksono, Alfian N., Williams, Caroline   +15 more
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Measurement of exhaled volatile organic compounds from patients with chronic obstructive pulmonary disease (COPD) using closed gas loop GC-IMS and GC-APCI-MS [PDF]

, 2016
Due to its high sensitivity, compact size and low cost Ion Mobility Spectrometry (IMS) has the potential to become a point-of-care breath analyzer. Therefore, we developed a prototype of a compact, closed gas loop IMS with gas chromatographic (GC) pre ...
Allers, Maria, Gaida, Arne, Hohlfeld, Jens M., Holz, O., Langejuergen, Jens, Schuchardt, Sven, Zimmermann, Stefan   +6 more
core   +2 more sources

A gas chromatography–ion mobility spectrometry applicability study [PDF]

, 2023
The authors acknowledge NMT. S. A. for supplying the GC-IMS device and additional resources. Publisher Copyright: © The Author(s) 2023.Contemporary life is mostly spent in indoor spaces like private houses, workplaces, vehicles and public facilities.
Moura, Pedro Catalão, Vassilenko, Valentina   +1 more
core   +1 more source

Effect of Drying Methods on Volatile Compounds of Citrus reticulata Ponkan and Chachi Peels as Characterized by GC-MS and GC-IMS

Foods, 2022
To reflect the volatile differences of dried citrus peel as affected by cultivars and drying methods, the volatile compounds of dried citrus peel of two cultivars (Citrus reticulata “Chachi” and Citrus reticulata “Ponkan”), prepared under three drying ...
Xiangying Yu, Xiaochun Chen, Yuting Li, Lin Li   +3 more
doaj   +1 more source