Results 1 to 10 of about 527,100 (364)

Gas-liquid chromatography-mass spectrometry of synthetic ceramides

Journal of Lipid Research, 1969
Two series of ceramides with either sphingosine (sphing-4-enine) or sphinganine as base and with one of the saturated fatty acids C16, C18, C20, C22, C24, C26, or oleic acid were analyzed as the 1,3-di-O-trimethylsilyl ether derivatives by gas ...
Bengt Samuelsson, Karin Samuelsson
doaj   +2 more sources

Quantifying Isoprenoids in the Ergosterol Biosynthesis by Gas Chromatography–Mass Spectrometry [PDF]

Journal of Fungi, 2023
The ergosterol pathway is a promising target for the development of new antifungals since its enzymes are essential for fungal cell growth. Appropriate screening assays are therefore needed that allow the identification of potential inhibitors.
Maximilian Liebl, Ludwig Huber, Hesham Elsaman, Petra Merschak, Johannes Wagener, Fabio Gsaller, Christoph Müller   +6 more
doaj   +2 more sources

Gas Chromatography–Mass Spectrometry Reveals Stage-Specific Metabolic Signatures of Ankylosing Spondylitis [PDF]

Metabolites, 2023
Ankylosing spondylitis (AS) is a type of chronic rheumatic immune disease, and the crucial point of AS treatment is identifying the correct stage of the disease. However, there is a lack of effective diagnostic methods for AS staging.
Yixuan Guo, Shuangshuang Wei, Mengdi Yin, Dandan Cao, Yiling Li, Chengping Wen, Jia Zhou   +6 more
doaj   +2 more sources

Gas–liquid chromatography–mass spectrometry of synthetic ceramides containing 2-hydroxy acids

Journal of Lipid Research, 1970
Ceramides containing either sphingosine or sphinganine and one of the 2-hydroxy acids, 14h:0, 16h:0, 18h:0, 20h:0, 22h:0, 24h:0, and 26h:0 were prepared and separated by gas chromatography as the 1,3,2'-tri-O-tri-methylsilyl derivatives.
S. Hammarström, B. Samuelsson, K. Samuelsson   +2 more
doaj   +2 more sources

Application progress of gas chromatography-mass spectrometry in food analysis

Shipin yu jixie, 2023
Gas chromatography-mass spectrometry combines the advantages of efficient and rapid gas chromatography and accurate identification by mass spectrometry. Gas chromatography-mass spectrometry has been widely used in the separation and analysis of volatile ...
XING Qian-qian, LIU Zhen-min, HONG Qing, YOU Chun-ping   +3 more
doaj   +1 more source

Research progress of HS-SPME-GC-MS in the detection of volatile substances in fruit products

Shipin yu jixie, 2023
From the perspective of the application of headspace solid-phase microextraction-mass spectrometry coupled with gas chromatography-mass spectrometry （HS-SPME-GC-MS） technology in the detection of volatile substances in fruit products, this paper ...
PANG Ji-wei, YIN Fei-long, LIU Yun-fen, QU De-zhi, LIANG Yuan-li, XIE Dong-di, LIAO Ling-yan, SHUAI Liang   +7 more
doaj   +1 more source

Gas chromatography–mass spectrometry determination of deltamethrin in food

Учёные записки Казанского университета: Серия Естественные науки, 2021
The article presents the results of the determination of the synthetic pyrethroid deltamethrin in raw food and various food products by gas chromatography with mass spectrometric detection (GC–MS).
I.M. Fitsev, E.R. Rakhmetova, A.G. Mukhammetshina, K.E. Burkin, O.V. Shlyamina   +4 more
doaj   +1 more source

Detection of Urethane in Non-alcoholic Fermented Food [PDF]

E3S Web of Conferences, 2020
Among fermented foods, urethane often appears, which is a “2A” grade carcinogen. There are many types of fermented foods in my country, and the detection methods are not uniform enough, and no specific urethane detection standards have been formed.
Lihua Zhang
doaj   +1 more source

Native Mass Spectrometry and Nucleic Acid G-Quadruplex Biophysics: Advancing Hand in Hand [PDF]

Accounts of Chemical Research, 2021, 54 (19), pp.3691-3699, 2023
While studying nucleic acids to reveal the weak interactions responsible for their three-dimensional structure and for their interactions with drugs, we also contributed to the field of biomolecular mass spectrometry, both in terms of fundamental understanding and with new methodological developments.
arxiv   +1 more source

Early gas chromatography/mass spectrometry [PDF]

Journal of the American Society for Mass Spectrometry, 1993
Spectroscopy Laboratory, The Dow Chemical Company, Midland, Michigan, USA In December 1955 or thereabouts, the authors coupled a homemade gas chromatograph to a research time-of-flight mass spectrometer constructed by W. C. Wiley, I. H. McLaren, and D. B. Harrington.
Roland S. Gohlke, Fred W. McLafferty
openaire   +3 more sources