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Thermal characterization and compounds identification of commercial Stevia rebaudiana Bertoni sweeteners and thermal degradation products at high temperatures by TG–DSC, IR and LC–MS/MS
(2020-01-01)
The thermal behavior of two commercially available sweeteners based on Stevia rebaudiana Bertoni was studied by TG–DSC and EGA. The composition prior and after heating was analyzed by LC–MS/MS to identify the steviol ...
Comparison of Impurity Profiles of Lipiblock (R) vs. Orlistat using HPLC and LC-MS/MS
(Colegio Farmaceuticos Provincia de Buenos Aires, 2012-02-01)
Comparative HPLC-UV and LC-MS/MS studies of impurity profiles of a reference sample (Xenical (R), F. Hoffmann La Roche Ltd., Switzerland) vs. generic (Lipiblock (R), EMS Sigma Pharma, a generic drug) were carried out with ...
Lornoxicam drug—A new study of thermal degradation under oxidative and pyrolysis conditions using the thermoanalytical techniques, DRX and LC-MS/MS
(2019-10-01)
In the present work, the thermal behavior of Lornoxicam drug was studied under oxidizing (air) and pyrolysis (N2) atmospheres using simultaneous thermogravimetry and differential scanning calorimetry (TG-DSC), differential ...
Determination of mitragynine in rat plasma by LC-MS/MS: Application to pharmacokinetics
(ELSEVIER SCIENCE BV, 2009)
This study used for the first time LC-MS/MS for the analysis of mitragynine (MIT), a mu-opioid agonist with antinociceptive and antitussive properties, in rat plasma. Mitragynine and the internal standard (amitriptyline) ...
Identification of Polyphenols from Chilean Brown Seaweeds Extracts by LC-DAD-ESI-MS/MS
(Taylor and Francis Inc., 2019)
Polyphenol profiles were characterized in extracts of three Chilean brown seaweeds, Durvillaea antarctica (Chamisso) Hariot, Lessonia spicata (Suhr) Santelices, and Macrocystis integrifolia (Bory) by liquid chromatography ...
A Modified Sample Preparation for Acrylamide Determination in Cocoa and Coffee Products
(SpringerNew YorkEUA, 2008)
Rapid Screening and Identification of Polar Constituents from Brazilian Arnica Lychnophora sp by LC-UV/DAD-ESI-MS and LC-UV/DAD-ESI-MS/MS Analysis
(VIEWEG, 2009)
This paper describes an analytical method for the rapid screening and identification of the phenolic constituents present in the polar extracts of different Lychnophora spp. using LC-UV/DAD-ESI-MS and LC-UV/DAD-ESI-MS/MS. ...
Characterization of flavonoid and naphthopyranone derivatives from Eriocaulon ligulatum using liquid chromatography tandem mass spectrometry
(Natural Products Inc, 2009-12-01)
Liquid chromatography-electrospray ionization multistage ion trap mass spectrometry (LC-ESI-IT-MS(n)) was used to analyze the secondary metabolites in the methanol extract of the capitulae of Eriocaulon ligulatum. The major ...
Carotenoid Profile of Tomato Sauces: Effect of Cooking Time and Content of Extra Virgin Olive Oil
(Mdpi Ag, 2015-05-01)
The consumption of carotenoid-rich vegetables such as tomatoes and tomato sauces is associated with reduced risk of several chronic diseases. The predominant carotenoids in tomato products are in the (all-E) configuration, ...