Tesis sobre el tema "Dosages chromatographiques"
Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros
Consulte los 17 mejores tesis para su investigación sobre el tema "Dosages chromatographiques".
Junto a cada fuente en la lista de referencias hay un botón "Agregar a la bibliografía". Pulsa este botón, y generaremos automáticamente la referencia bibliográfica para la obra elegida en el estilo de cita que necesites: APA, MLA, Harvard, Vancouver, Chicago, etc.
También puede descargar el texto completo de la publicación académica en formato pdf y leer en línea su resumen siempre que esté disponible en los metadatos.
Explore tesis sobre una amplia variedad de disciplinas y organice su bibliografía correctamente.
Nicolas, Yves. "Les prolamines de ble : extraction exhaustive, developpement de dosages chromatographiques en phase inverse et de dosages immunochimiques a l'aide d'anticorps anti-peptide". Nantes, 1997. http://www.theses.fr/1997NANT2045.
Texto completoThierry, Isabelle. "Optimisation de la qualité des dosages chromatographiques destinés aux études pharmacocinétiques : recherche d'une méthode de régression adaptée à la détermination des droites de calibration". Paris 5, 1990. http://www.theses.fr/1990PA05P223.
Texto completoKarpe, Patrick. "Contribution à l'amélioration des limites de détection des micro-polluants présents dans les eaux par utilisation d'une colonne pulsée d'extraction liquide-liquide : application aux dosages chromatographiques des pesticides organo-chlorés". Montpellier 2, 1987. http://www.theses.fr/1987MON20247.
Texto completoKarpe, Patrick. "Contribution à l'amélioration des limites de détection des micro-polluants présents dans les eaux par utilisation d'une colonne pulsée d'extraction liquide-liquide application aux dosages chromatographiques des pesticides organo-chlorés /". Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37606343x.
Texto completoTamisier-Karolak, Laurence. "Application de la modélisation gaussoexponentielle du pic chromatographique à l'étude de l'influence du vieillissement des colonnes chromatographiques sur la validation d'une méthode de dosage". Paris 11, 1993. http://www.theses.fr/1993PA114828.
Texto completoGrosset, Catherine. "Identification et dosage chromatographiques de mélanges d'antioxydants : application à des formes pharmaceutiques". Université Joseph Fourier (Grenoble), 1987. http://www.theses.fr/1987GRE18011.
Texto completoMOUDDI, LAHCEN. "Comparaison de deux techniques de dosage de la ciclosporine a dans le sang : methode radioimmunologique et methode chromatographique". Strasbourg 1, 1994. http://www.theses.fr/1994STR15075.
Texto completoBOYEAU, ERIC. "Adaptation d'une technique chromatographique pour le dosage de la creatinine dans le serum et les liquides de dialyse peritoneale". Université Louis Pasteur (Strasbourg) (1971-2008), 1995. http://www.theses.fr/1995STR15012.
Texto completoLAHELY, SARAH. "Dosage de vitamines du groupe b (niacine, acide pantothenique, biotine et folates) dans les aliments apres isolement chromatographique". Université Louis Pasteur (Strasbourg) (1971-2008), 1998. http://www.theses.fr/1998STR13023.
Texto completoAbi, Aad Elizabeth. "Impact de la Détente Instantanée Contrôlée (DIC) sur l’extraction des molécules bioactives de rhizomes de Rheum ribes L". Electronic Thesis or Diss., La Rochelle, 2023. http://www.theses.fr/2023LAROS008.
Texto completoRheum ribes L. (rhubarb) is one of the most important Mediterranean medicinal plants. Preparing its rhizomes’ aqueous decoctions has become common among patients suffering from various diseases. Instant Controlled Pressure Drop (DIC) is a High-Temperature Short-Time treatment (HTST) followed by an abrupt pressure drop towards the vacuum (approximately 5 kPa). This technology increases the expansion and reduces the tortuosity of the treated matrix to ensure better diffusivity of the extraction solvents and greater availability of the active molecules. On the one hand, our research aimed at the impact of DIC treatment on the rhizomes of a Lebanese species of R. ribes L. The evaluations were based on the contents of total phenolics (TPC) and flavonoids (TFC) as well as the antioxidant capacities of aqueous extracts of the treated rhizomes. The results showed a negative correlation between the saturated steam pressure applied and the values of TPC, TFC, and the antioxidant activities of the samples. However, DIC treatment time had no significant influence on the response variables. In addition to these two DIC operating factors (pressure and treatment time), the effect of the rhizomes water content (W) was also studied. The results showed that the increase of “W” does not lead to better yields of phenolic compounds. On the other hand, this study presents the impact of DIC treatment on the biological activities (antibacterial and antiproliferative effects) of rhizome extracts. The results revealed that the aqueous extracts of DIC-treated rhizomes show weak antibacterial powers on E. coli and S. aureus, with slightly superior results in inhibiting the growth of S. aureus. Regarding the viability test of melanoma cancer cells, the results showed that the DIC treatment positively impacts the antiproliferative power of the treated samples compared with the untreated point (aqueous MP). In particular, two samples among those tested recorded an antiproliferative power of 60%. The HPLC and UHPLC assays revealed the presence of three anthraquinones (emodin, chrysophanol, and physcion) in the rhizome extracts and about twenty compounds from the flavonoid family. However, the amounts of anthraquinones detected are not significantly higher in the extracts treated with DIC than in the untreated ones. Finally, it was found that the total phenolic content of an aqueous sample treated with the optimal DIC parameters is equal to that of an untreated hydroalcoholic sample. Further experiments will be necessary to validate this result
Rabouan, Sylvie. "Contribution à l'étude analytique d'oligopeptides par méthodes spectrométriques et chromatographiques : intérêt dans le dosage d'un peptide immunostimulant : la glycyl-leucyl-phenylalanine". Poitiers, 2000. http://www.theses.fr/2000POIT1801.
Texto completoPakin, Caroline. "Le dosage de vitamines du groupe B (acide pantothénique et cobalamines) dans les aliments après isolement chromatographique et détection fluorimétrique". Université Louis Pasteur (Strasbourg) (1971-2008), 2004. https://publication-theses.unistra.fr/public/theses_doctorat/2004/PAKIN_Caroline_2004.pdf.
Texto completoThe developped method for the free pantothenic acid consists of a purification of the samples by successive passages through anion and cation exchange cartridges, then an isolation by reversed-phase chromatography followed by a post-column derivatization of pantothenic acid as a fluorescent isoindole (reaction of -alanin, formed by hot alkaline hydrolysis of pantothenic acid, with ortho-phthaldialdehyde in the presence of mercaptopropionic acid). An extraction procedure in two steps, first treatment by pepsin (hydrolysis of forms bound to proteins), then treatment by alkaline phosphatase and pantetheinase (hydrolysis of coenzyme A), allows to release the total vitamin B5 in the pantothenic acid form. As for free vitamin B12, the proposed protocol contains a very specific purification by passage through an immunoaffinity column, with concentration of the extract, then a transformation of the vitamin into ribazole (obtained by hot alkaline hydrolysis followed by a treatment by alkaline phosphatase). The fluorescent compound is then analysed by fluorimetry after a separation by reversed-phase chromatography. An enzymatic hydrolysis by pepsin allows to release the different forms of vitamin B12 bound to proteins and thus to obtain an estimation of the total vitamin B12 amount. These sensitive and repetable methods give good recovery rates. Owing to their low detection limit (0,65 µg. G-1 for the vitamin B5 and 1 ng. G-1 for the vitamine B12) and the good resolution of the peaks (respectively of pantothenic acid and of ribazole), they could most probably be applied to the determination of these vitamins in any foodstuff
BRIDONNEAU, PHILIPPE. "Etude du comportement chromatographique des sous-classes d'igg humaines. Mise au point d'une methode de dosage des sous-classes d'igg dans les preparations d'immunogloublines". Paris 6, 1990. http://www.theses.fr/1990PA066431.
Texto completoRichard, Janice. "Développement d'une méthode chromatographique liquide à haute performance pour le dosage des formes aldéhydiques et acide de la vitamine B¦6 dans le plasma et les érythrocytes humains". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0016/MQ47280.pdf.
Texto completoPouliquen, Hervé. "L'oxytétracycline et l'acide oxolinique en aquaculture : méthodes de dosage chromatographique dans l'eau de mer, les sédiments et les bibalves marins : études expérimentales de leur devenir dans l'environnement marin". Nantes, 1994. http://www.theses.fr/1994NANT2074.
Texto completoDeroche, Annabelle. "Optimisation de la limite de quantification d'une méthode chromatographique en phase gazeuse couplée à une détection par capture d'électrons : développement et application au dosage d'un antiandrogène dans le plasma humain". Paris 5, 1997. http://www.theses.fr/1997PA05P224.
Texto completoLadjimi, Hamed. "Mise au point d'une technique de dosage chromatographique des principaux dérivés foliques : application à l'étude des folates tissulaires chez le rat en régime normal et supplémente en acide folique, effets des cobalamines et de la phénytoi͏̈ne". Paris 11, 1992. http://www.theses.fr/1992PA114818.
Texto completo