Results 261 to 270 of about 936,931 (309)

Lipidomic profiling of Pleurotus ostreatus by LC/MS Q-TOF analysis

Food Research International, 2022
In this paper, for the first time a lipidomic analysis on Pleurotus ostreatus species was performed by liquid chromatography quadrupole time-of-flight mass spectrometry (LC/MS Q-TOF). Twenty-seven lipid classes, including polar and non-polar lipid classes, were detected. Free fatty acids (FA) were the predominant fraction (>57%), followed by fatty acid
Roberto, Maria Pellegrino, Federica, Ianni, Francesca, Blasi, Paola, Angelini, Carla, Emiliani, Roberto, Venanzoni, Lina, Cossignani   +6 more
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[Analysis of chemical constituents in classical prescription Danggui Buxue Decoction based on RP-Q-TOF-MS and HILIC-Q-TOF-MS].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2022
The chemical constituents of classical prescription Danggui Buxue Decoction were analyzed by reversed-phase(RP) chromatography and hydrophilic interaction chromatography(HILIC) coupled with quadrupole time-of-flight mass spectrometry. RP separation of Danggui Buxue Decoction was performed on ACQUITY UPLC HSS T3(2.1 mm×100 mm, 1.8 μm), while HILIC ...
Dong-Mei, Lei, Chang-Liang, Yao, Xue-Bing, Chen, Jian-Qing, Zhang, Jia-Yuan, Li, De-An, Guo   +5 more
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Characterization of paliperidone photodegradation products by LC‐Q‐TOF multistage mass spectrometry [PDF]

Biomedical Chromatography, 2015
AbstractThe photodegradation of paliperidone in aqueous and methanol media under UVA and UVC irradiation was investigated. The identification and structural elucidation of its photodegradation products were performed by the use of the reversed‐phase liquid chromatography coupled with accurate mass hybrid Q‐TOF mass spectrometry and an atmospheric ...
Robert, Skibiński, Łukasz, Komsta, Tadeusz, Inglot   +2 more
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Metabolic profiling of urine in young obese men using ultra performance liquid chromatography and Q-TOF mass spectrometry (UPLC/Q-TOF MS)

Journal of Chromatography B, 2011
Obesity is currently epidemic in many countries worldwide. In the young adult, obesity often accompanies hyperlipemia, which is strongly related to the occurrence and development of obesity-related chronic diseases such as diabetes mellitus, hypertension and cardiovascular disease.
Cheng, Wang, Rennan, Feng, Dianjun, Sun, Ying, Li, Xinxin, Bi, Changhao, Sun   +5 more
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Phase Ⅰ and phase Ⅱ metabolic studies of Citrus flavonoids based on electrochemical simulation and in vitro methods by EC-Q-TOF/MS and HPLC-Q-TOF/MS

Food Chemistry, 2022
The oxidation products and metabolic pathways of five Citrus flavonoids were studied by online electrochemical/quadrupole time-of-flight mass spectrometry (EC/Q-TOF/MS). The simulated oxidation metabolism of target compounds in phase I and phase Ⅱ was carried out at boron-doped diamond (BDD) working electrode.
Zi-Xuan, Yue, Yu-Xin, Gu, Tian-Ci, Yan, Fang-Ming, Liu, Jun, Cao, Li-Hong, Ye   +5 more
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Chemical profiling of Euphorbia fischeriana Steud. by UHPLC-Q/TOF-MS

Journal of Pharmaceutical and Biomedical Analysis, 2018
Ultra-high-performance liquid chromatography coupled with quadrupole/time-of-flight mass spectrometry (UHPLC-Q/TOF-MS) in positive ion mode was used to profile and identify the major constituents in Euphorbia fischeriana Steud. (E. fischeriana). An Agilent ZORBAX SB-C18 column was used to separate the crude extract of E.
Canjian, Wang, Xiaoqi, Zhang, Xiaohong, Yan, Wencai, Ye, Shuangcheng, Ma, Yingqiao, Jiang   +5 more
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Chemical profiling of Wu-tou decoction by UPLC–Q-TOF-MS

Talanta, 2014
Wu-tou decoction (WTD), a traditional Chinese medicine (TCM) formula, is composed of Aconiti Radix Cocta, Ephedrae Herba, Paeoniae Radix Alba, Astragali Radix and Glycyrrhiza Radix Preparata, and it has been used for more than a thousand years to treat rheumatic arthritis, rheumatoid arthritis and pain of joints, while the active constitutions of WTD ...
Yao, Qi, Shizhe, Li, Zifeng, Pi, Fengrui, Song, Na, Lin, Shu, Liu, Zhiqiang, Liu   +6 more
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The Future of GC/Q-TOF in Environmental Analysis

2013
Abstract Gas chromatography/quadrupole time-of-flight mass spectrometry (GC/Q-TOF) offers high mass resolution and accurate mass data with the ability to perform structure elucidation and confirmation via MS/MS processes for a myriad of analytes in environmental and biological matrices. The ability of GC/Q-TOF to accurately measure persistent organic
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Metabolic profile of phillyrin in rats obtained by UPLC‐Q‐TOF‐MS

Biomedical Chromatography, 2015
AbstractForsythia suspensa Vahl (Oleaceae) is an important original plant in traditional Chinese medicine. The air‐dried fruits of Forsythia suspensa have long been used to relieve respiratory symptoms. Phillyrin is one of the main chemical constituent of Forsythia suspensa.
Hairong, Wang, Xiaoxu, Zhang, Peipei, Jia, Yanfen, Zhang, Siwen, Tang, Hongtao, Wang, Song, Li, Xinluan, Yu, Yingfei, Li, Lantong, Zhang   +9 more
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Study on chemical constituents in Lysinotus wilsonii by UPLC-Q-TOF-MS

China Journal of Chinese Materia Medica, 2014
The Ultra-high Performance Liquid Chromatography Quadrupole Time-of-flight Mass Spectrometry（UPLC-Q-TOF-MS）was applied to analyze the chemical components in Lysinotus wilsonii. A Waters ACQUITY UPLC-BEH-C₁₈ S column（2.1 mm×100 mm,1.7 μm）was used with a gradient elution of acetonitrile-water containing 0.1％ formic acid.
Jun, Hu, Quan, Zhang, Meng-Die, Qi, Li-Ping, Kang, Tie-Gui, Nan, Jian, Yang, Yuan, Yuan, Zhi-Lai, Zhan, Yong, Liu, Lu-Qi, Huang   +9 more
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