Search results for "Vitamine e"

showing 3 items of 3 documents

High-performance liquid chromatographic determination of tocopherols in infant formulas

2002

A method for the simultaneous determination of alpha-tocopherol acetate and alpha-, delta-, and gamma-tocopherols by normal-phase high-performance liquid chromatography (HPLC) with a fluorescent detector in infant formula is proposed. The values obtained in the determination of the analytical parameters: linearity, precision, limit of detection and accuracy (analysis of a standard reference material, SRM 1846), confirm the quality of the method. The proposed method is useful for the determination of alpha-, delta-, and gamma-tocopherols and alpha-tocopherol acetate in infant formulas at a low cost and in a total time of 2 h.

Detection limitChromatographyChemistryVitamine eOrganic ChemistryDetectorAnalytical chemistryInfantReproducibility of ResultsTocopherolsfood and beveragesLinearityGeneral MedicineSensitivity and SpecificityBiochemistryHigh-performance liquid chromatographyAnalytical ChemistrySpectrometry FluorescenceHumansInfant FoodQuantitative analysis (chemistry)Chromatography High Pressure LiquidAnalysis methodJournal of Chromatography A
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Supercritical Fluid Extraction and Supercritical Fluid Chromatography of Vitamin E in Pharmaceutical Preparations

1999

ChromatographyVitamine eChemistryGeneral Chemical EngineeringVitamin Emedicine.medical_treatmentSupercritical fluid extractionDosage formlaw.inventionlawSupercritical fluid chromatographymedicineFlame ionization detectorSample preparationQuantitative analysis (chemistry)Journal of High Resolution Chromatography
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Oxidation-Induced Increase In Photoreactivity of Bovine Retinal Lipid Extract

2017

Open access original paper Source : 10th EPR Workshop on Applications of EPR in Biology and Medicine, 2016 in Krakow, POLAND.; International audience; The mammalian retina contains a high level of polyunsaturated fatty acids, including docosahexaenoic acid (22:6) (DHA), which are highly susceptible to oxidation. It has been shown that one of the products of DHA oxidation-carboxyethylpyrrole (CEP), generated in situ, causes modifications of retinal proteins and induces inflammation response in the outer retina. These contributing factors may play a role in the development of age-related macular degeneration (AMD). It is also possible that some of the lipid oxidation products are photoreactiv…

0301 basic medicineretinaépithéliumLightOrganes des sensalpha-TocopherolBiochemistrysinglet oxygenchemistry.chemical_compoundspectrométrie de masseChromatography High Pressure Liquidrod outer segmentschemistry.chemical_classificationLiposomePhotorSuperoxideSinglet oxygenvitamine ephotorGeneral MedicineLipidsvertebrate retinaBiochemistryDocosahexaenoic acidAlimentation et Nutritionoxidized phospholipidsfatty-acid compositionRetina;Lipids;Polyunsaturated fatty acids;Oxidation;Photor;ROD OUTER SEGMENTS;GLYCATION END-PRODUCTS;SINGLET OXYGEN;PIGMENT EPITHELIUM;VITAMIN-E;MACULAR DEGENERATION;OXIDIZED PHOSPHOLIPIDS;MASS-SPECTROMETRY;VERTEBRATE RETINAOxidation-Reductionpolyunsaturated fatty acidsphospholipideSpectrometry Mass Electrospray IonizationChromatography Gasmacular degenerationoxidationrétineElectrospray ionizationvitamin-eSensory OrgansBiophysicsMédecine humaine et pathologieRetinalipids03 medical and health sciencesLipid oxidationZeaxanthinsacide gras polyinsaturé[ SDV.MHEP ] Life Sciences [q-bio]/Human health and pathologyOxidationAnimalsFood and NutritionlipideOriginal PaperReactive oxygen speciesChromatography030102 biochemistry & molecular biologyElectron Spin Resonance SpectroscopyoxydationRetinaldégénérescence maculaireCell Biologymass-spectrometryvertébrépigment epitheliumOxygen030104 developmental biologychemistryLiposomesglycation end-productsQuantum TheoryCattleSpin LabelsHuman health and pathologyPolyunsaturated fatty acidssense organs[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
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