Results 1 to 10 of about 190,030 (295)
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
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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 +3 more
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Carbohydrate Polymer Technologies and Applications, 2023 Oligosaccharides play a central role in plants and are involved in basal metabolism, and many other functions at cellular levels. Indeed, oligosaccharides analysis was stimulated by the development of analytical chemistry and computational biology and ...
Noureddine Benkeblia
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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 +7 more
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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 +4 more
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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
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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
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Analysis and identification of diamondoids by different mass spectrometry techniques
Shiyou shiyan dizhi, 2020 Diamondoids have attracted extensive attention from researchers because of their important application value in oil and gas exploration. Since diamondoids have complex molecular structures and a large number of isomers, the identification of certain ...
Ling HUANG +6 more
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Discrimination of Pakistani Fountain Pen Inks by Gas Chromatography-Mass Spectrometry (GC-MS)
International Journal of Analytical Chemistry, 2022 In developing countries, the chances of fraud in written documents are comparatively high. Therefore, comparison of fountain pen inks is especially imperative in examination of forensic questioned documents.
Mehwish Sharif +5 more
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State-of-the-Art Analytical Approaches for Illicit Drug Profiling in Forensic Investigations
Molecules, 2022 In forensic chemistry, when investigating seized illicit drugs, the profiling or chemical fingerprinting of drugs is considered fundamental. This involves the identification, quantitation and categorization of drug samples into groups, providing ...
Reem Ahmed +2 more
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