Results 21 to 30 of about 82,838 (255)
Identification of New Psychoactive Tryptamines 4-OH-MET and 4-AcO-DMT Using High Resolution Mass Spectrometry and Nuclear Magnetic Resonance Spectroscopy [PDF]
Fayixue Zazhi, 2021 Objective To detect the uncontrolled new psychoactive tryptamines involved in drug-related cases with high resolution mass spectrometry and nuclear magnetic resonance spectroscopy.
DING Ke-ran, NI Chun-fang, HE Si-yang, et al.
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Molecules, 2020 A method for the simultaneous determination of robenidine, halofuginone, lasalocid, monensin, nigericin, salinomycin, narasin, and maduramicin residues in eggs by liquid chromatography−tandem mass spectrometry (LC−MS/MS) was developed.
Bo Wang +7 more
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Ultra-performance liquid chromatography-mass spectrometry for precise fatty acid profiling of oilseed crops [PDF]
PeerJ, 2019 Oilseed crops are one of the most important sources of vegetable oils for food and industry. Nutritional and technical properties of vegetable oil are primarily determined by its fatty acid (FA) composition.
Alina Chernova +15 more
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Toxins, 2023 Pimelea poisoning of cattle is a unique Australian toxic condition caused by the daphnane orthoester simplexin present in native Pimelea pasture plants. Rumen microorganisms have been proposed to metabolise simplexin by enzymatic reactions, likely at the
Zhi Hung Loh +4 more
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Determination of Cannabinoids in Whole Blood by UPLC-MS-MS [PDF]
Journal of Analytical Toxicology, 2008 An ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS-MS) method was developed and validated for the simultaneous determination of Delta(9)-tetrahydrocannabinol (THC), 11-hydroxy-Delta(9)-tetrahydrocannabinol (11-OH-THC), and 11-nor-9-carboxy-Delta(9)-tetrahydrocannabinol (THC-COOH) in whole blood.
Carole, Jamey +3 more
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Molecules, 2022 Ginseng (Panax quinquefolius), a popular herbal and nutritional supplement consumed worldwide, has been demonstrated to possess vital biological activities, which can be attributed to the presence of ginsenosides. However, the presence of ginsenosides in
Bo-Yang Hsu +3 more
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Pharmacokinetics and metabolism of icaritin in rats by UPLC‐MS/MS [PDF]
Food Science & Nutrition, 2019 AbstractIcaritin (ICT) has distinct bioactivities, especially known for its beneficial effects on bone‐related degenerative disorders; however, its pharmacokinetic properties remain unknown. A novel developed UPLC‐MS/MS method for the determination of ICT and its main metabolite glucuronidated icaritin (GICT) was firstly applied to pharmacokinetic and ...
Zhen‐Wu Huang +3 more
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Separations, 2023 Fenebrutinib (GDC-0853; FNB) is an oral small molecule that was developed by Roche Pharmaceuticals to slow multiple sclerosis progression. FNB is a reversible bruton tyrosine kinase (BTK) inhibitor, which showed the maximum potency of BTK inhibitors in ...
Mohamed W. Attwa +4 more
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Rapid Determination of Bucinnazine in Blood by UPLC-MS/MS [PDF]
Fayixue Zazhi, 2023 Objective To establish a rapid method for the analysis of bucinnazine in blood by UPLC-MS/MS and to apply the method to the practical case. Methods After the internal standard was added to blood, the protein was precipitated with 900 μL mixed solution ...
Zhang-ming GAO, Jing-yu SHI, Hao ZENG, Xue-jun ZHANG
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Determination of Paclitaxel in Human Plasma by UPLC-MS-MS [PDF]
Journal of Chromatographic Science, 2008 A sensitive and specific ultra-performance liquid chromatography-tandam mass spectrometry method for the quantitation of paclitaxel is established. A 200 microL human plasma sample is spiked with 13C6-labeled paclitaxel as an internal standard and extracted with 1.3 mL of tert-butyl methyl ether.
Shuang-Qing, Zhang, Guo-Hua, Chen
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