Results 11 to 20 of about 195,289 (147)

Gas chromatography-mass spectrometry in the taxonomy of Miscanthus

open access: yesВавиловский журнал генетики и селекции, 2020
Chemotaxonomy as a system approach deals with intra- and interspecific polymorphism of a group of taxa in order to clarify their taxonomic positions or to select material for selection or introduction.
N. M. Slynko   +9 more
doaj   +1 more source

Pipecolic Acid Quantification Using Gas Chromatography-coupled Mass Spectrometry

open access: yesBio-Protocol, 2020
Pipecolic acid (Pip), a non-proteinacious product of lysine catabolism, is an important regulator of immunity in plants and humans alike. For instance, Pip accumulation is associated with the genetic disorder Zellweger syndrome, chronic liver diseases ...
Keshun Yu, huazhen liu, Pradeep Kachroo
doaj   +1 more source

Blood-Based Lipidomics Approach to Evaluate Biomarkers Associated With Response to Olanzapine, Risperidone, and Quetiapine Treatment in Schizophrenia Patients

open access: yesFrontiers in Psychiatry, 2018
This is the first study to identify lipidomic markers in plasma associated with response of acutely ill schizophrenia patients in response to specific antipsychotic treatments.
Adriano Aquino   +10 more
doaj   +1 more source

Simultaneous Determination of 20 Pyrazines in Baijiu by Gas Chromatography-Tandem Mass Spectrometry [PDF]

open access: yesShipin Kexue
In this study, a method for the simultaneous determination of 20 pyrazines in baijiu was established by direct injection (DI) combined with gas chromatography-tandem mass spectrometry (GC-MS/MS), and the pyrazines in 10 brands of baijiu with different ...
WANG Na, SHEN Yi, ZHUANG Yuan, CHENG Wei, LUO Sen, ZHANG Yadong, LIU Zixuan, LIU Bing, GAO Hongbo
doaj   +1 more source

Gas Chromatography-Mass Spectrometry of Volatile Organic Impurities in Whiskey

open access: yesТехника и технология пищевых производств, 2022
Alcoholic beverages are complex multicomponent objects. Their quality and safety control is a serious analytical task that requires new, more accurate instrumental methods, e.g., chromatography-mass spectrometry.
Nataliya V. Shelekhova   +3 more
doaj   +1 more source

Gas-liquid chromatography-mass spectrometry of synthetic ceramides

open access: yesJournal 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   +1 more source

Simultaneous Method for Selected PBDEs and HBCDDs in Foodstuffs Using Gas Chromatography—Tandem Mass Spectrometry and Liquid Chromatography—Tandem Mass Spectrometry

open access: yesToxics, 2022
Flame retardants are added to consumer products to retard the ignition of combustible materials. Technical mixtures of polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCDD) were massively used for several decades.
Eva Lipičar   +3 more
doaj   +1 more source

Development of Quantitative Chemical Ionization Using Gas Chromatography/Mass Spectrometry and Gas Chromatography/Tandem Mass Spectrometry for Ambient Nitro- and Oxy-PAHs and Its Applications

open access: yesMolecules, 2023
The concentration of polycyclic aromatic hydrocarbons (PAHs) in the atmosphere has been continually monitored since their toxicity became known, whereas nitro-PAHs (NPAHs) and oxy-PAHs (OPAHs), which are derivatives of PAHs by primary emissions or ...
Jungmin Jo   +5 more
doaj   +1 more source

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