Zoekresultaten - 22 results
Development and Validation of a UHPLC-ESI-MS/MS Method for Quantification of Oleandrin and Other Cardiac Glycosides and Evaluation of Their Levels in Herbs and Spices from the Belgian Market
LC-MS/MS oleandrin plant toxins urine VALIDATION Abstract: Cardiac glycosides (CG s) are naturally occurring plant secondary metabolites that can be toxic to humans and animals. The aim of this work was to ...
The occurrence of putative cognitive enhancing research peptides in seized pharmaceutical preparations: An incentive for controlling agencies to prepare for future encounters of the kind.
served as an incentive to develop a novel combined liquid chromatography tandem mass spectroscopy (LC- MS / MS) methodology, applicable to both hydrophilic or more hydrophobic peptides, which was utilized ...
Développement et mise au point d'une méthode de quantification par LC-MS/MS de la ricinine et de la L-abrine dans des matrices biologiques
Publication Type: Dissertation Authors: S Nganzeu Source: HE Francisco Ferrer (2019) Service: Contaminants organiques et additifs Organische contaminanten en additieven Organic contaminants and additives Full text language: French Category: D2 FOS Clas ...
A simple dilute-and-shoot method for screening and simultaneous quantification of nicotine and alkaloid impurities in electronic cigarette refills (e-liquids) by UHPLC-DAD
and impurity levels, the majority of them use a targeted LC- MS / MS approach. There is, however, a need for more robust quantification methods that are easy to implement in most control (industrial and ...
Profiling of the beneficial and potentially harmful components of Trichodesma indicum seed and seed oil obtained by ultrasound-assisted extraction
LC-Q- TOF- MS. Rosmarinic acid (67%) and isomers of salvianolic acid B/E/L (26%) were the main phenolics, while melitric acid A and sebestenoid C/D constituted 6% and 1%, respectively. Only a minor part ...
Silicone Wristband Passive Samplers Yield Highly Individualized Pesticide Residue Exposure Profiles.
Ben Somers; Marijke Hendrickx; Mirjana Andjelkovic; An Van Nieuwenhuyse Source: Environ Sci Technol, Volume 52, Issue 1 (2018) Keywords: Dietary exposure environmental exposure LC-MS/MS passive sampler ...
Risk Assessment of Florists Exposed to Pesticide Residues through Handling of Flowers and Preparing Bouquets.
extracted with a multi-residue Quick Easy Cheap Effective Rugged Safe (QuEChERS) method and analyzed by a combination of gas and liquid chromatography tandem mass spectrometry (GC- MS / MS and LC- MS / MS) by ...
Identification of a new tert-leucinate class synthetic cannabinoid in powder and "spice-like" herbal incenses: Methyl 2-[[1-(5-fluoropentyl)indole-3-carbonyl]amino]-3,3-dimethyl-butanoate (5F-MDMB-PICA).
chromatography with diode array detector (HPLC- PDA) and gas chromatography mass spectrometry (GC- MS) with computer based library search against spectral libraries. However, the most predominant compound in the ...
Towards the development of innovative multi-mycotoxin reference materials as promising metrological tool for emerging and regulated mycotoxin analyses.
Keywords: Animals Chromatography, Liquid Food Analysis Mycotoxins Reference Standards Tandem Mass Spectrometry Temperature Abstract: The interest in LC- MS / MS multi-mycotoxin methods unveiled an urgent need ...
An application of mass spectrometry for quality control of biologicals: Highly sensitive profiling of plasma residuals in human plasma-derived immunoglobulin.
information required. BIOLOGICAL SIGNIFICANCE: This study characterized residual plasma proteins in Ig products, using bottom-up LC- MS / MS with conventional data-dependent acquisition, preceded by sample fractionation. ...