Bibliografías temáticas / Pseudostationary phases

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Literatura académica sobre el tema "Pseudostationary phases"

Autor: Grafiati
Publicado: 10 de marzo de 2023

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Artículos de revistas sobre el tema "Pseudostationary phases"

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Palmer, Christopher P. "Electrokinetic chromatography with polymeric pseudostationary phases". Journal of Separation Science 31, n.º 5 (marzo de 2008): 783–93. http://dx.doi.org/10.1002/jssc.200700524.

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Nilsson, Christian y Staffan Nilsson. "Nanoparticle-based pseudostationary phases in capillary electrochromatography". ELECTROPHORESIS 27, n.º 1 (enero de 2006): 76–83. http://dx.doi.org/10.1002/elps.200500535.

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Tanaka, Nobuo, Hironobu Iwasaki, Takeshi Fukutome, Ken Hosoya y Takeo Araki. "Starburst dendrimer-supported pseudostationary phases for electrokinetic chromatography". Journal of High Resolution Chromatography 20, n.º 10 (octubre de 1997): 529–38. http://dx.doi.org/10.1002/jhrc.1240201004.

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Shamsi, Shahab A., Christopher P. Palmer y Isiah M. Warner. "Peer Reviewed: Molecular Micelles: Novel Pseudostationary Phases for CE". Analytical Chemistry 73, n.º 5 (marzo de 2001): 140 A—149 A. http://dx.doi.org/10.1021/ac012412b.

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PUMERA, M., J. WANG, E. GRUSHKA y O. LEV. "Organically modified sols as pseudostationary phases for microchip electrophoresis". Talanta 72, n.º 2 (30 de abril de 2007): 711–15. http://dx.doi.org/10.1016/j.talanta.2006.11.043.

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Baechmann, Knut, Alexis Bazzanella, Ingo Haag, Kwang-Yong Han, Ralf Arnecke, Volker Boehmer y Walter Vogt. "Resorcarenes as pseudostationary phases with selectivity for electrokinetic chromatography". Analytical Chemistry 67, n.º 10 (15 de mayo de 1995): 1722–26. http://dx.doi.org/10.1021/ac00106a012.

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Rauk, Erika, Anton Kotzev, André Laschewsky y Christopher P. Palmer. "Cationic and perfluorinated polymeric pseudostationary phases for electrokinetic chromatography". Journal of Chromatography A 1106, n.º 1-2 (febrero de 2006): 29–35. http://dx.doi.org/10.1016/j.chroma.2005.07.114.

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Kopecká, Kateřina, Eva Tesašová, Andrei Pirogov y Bohuslav Gaš. "Ionenes acting as pseudostationary phases in capillary electrokinetic chromatography". Journal of Separation Science 25, n.º 15-17 (1 de noviembre de 2002): 1027–34. http://dx.doi.org/10.1002/1615-9314(20021101)25:15/17<1027::aid-jssc1027>3.0.co;2-m.

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Schulte, Shannon y Christopher P. Palmer. "Alkyl-modified siloxanes as pseudostationary phases for electrokinetic chromatography". ELECTROPHORESIS 24, n.º 6 (marzo de 2003): 978–83. http://dx.doi.org/10.1002/elps.200390141.

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Peterson, Dominic S. y Christopher P. Palmer. "Alkyl modified anionic siloxanes as pseudostationary phases for electrokinetic chromatography". Journal of Chromatography A 924, n.º 1-2 (julio de 2001): 103–10. http://dx.doi.org/10.1016/s0021-9673(01)00759-2.

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Tesis sobre el tema "Pseudostationary phases"

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Schnee, Vincent Patrick. "The characterization of cationic pseudostationary phases for electrokinetic chromatography". CONNECT TO THIS TITLE ONLINE, 2007. http://etd.lib.umt.edu/theses/available/etd-05222008-102001/.

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Zhao, Qing. "Pseudostationary Phase for Solid Phase Extraction". TopSCHOLAR®, 2006. http://digitalcommons.wku.edu/theses/988.

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A unique pseudostationary phase for Solid Phase Extraction is presented. This pseudostationary phase consists of surfactant, which is initially immobilized onto hydrophilic cation exchange resin. The surfactant chain through hydrophobic interactions extracts hydrophobic analytes in the same manner as conventional bonded alkyl moieties on silica based non-polar sorbents. Although hydrophobic analytes can be efficiently trapped on commercially available non-polar sorbents (i.e. Ci8 silica), organic solvents that are necessary to break strong hydrophobic interactions between the analytes and the sorbent are harmful. They are also incompatible for direct introduction into a reversed phase liquid chromatographic set up. In the presented approach, the entire pseudostationary phase may be removed via ion exchange in very mild aqueous solutions, resulting in very efficient elutions with a final extract that is mild and reversed phase liquid chromatographic compatible. Rinse solution parameters were optimized and various cationic surfactants attached to cation exchangeable silica including silica modified with sulfopropyl groups and unmodified silica were investigated to reach sufficient sorbent hydrophobicity to capture EPA 16 priority polycyclic aromatic hydrocarbons (PAHs). PAHs were preconcentrated from river water and were determined using fluorescence detector coupled to high performance liquid chromatography (HPLC). Detections limits for all PAHs examined were lower than EPA's maximum contaminant level.
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Morin, Christophe. "Mise en oeuvre de la détection fluorimétrique indirecte induite par laser en électrophorèse capillaire. Application à l'électrophorèse de zone et à la chromatographie électrocinétique micellaire". Rouen, 1998. http://www.theses.fr/1998ROUES011.

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Ces travaux portent sur la mise en oeuvre de la détection fluorimétrique indirecte induite par laser en électrophorèse capillaire en utilisant un détecteur commercial sans en modifier les caractéristiques techniques ainsi que le sel de sodium de la fluorescéine comme agent de visualisation. Après quelques rappels sur les principes de la détection indirecte avec, en préambule, une brève présentation des deux techniques utilisées dans ce travail, à savoir l'électrophorèse capillaire de zone libre (CZE) et la chromatographie électrocinétique micellaire (MEKC), nous avons tout d'abord développé le traitement théorique de la détection fluorimétrique indirecte. Celui-ci nous a permis de considérer, en CZE, l'analyse de solutés présentant ou non une charge de même signe que l'anion fluorescéinate, à savoir, à titre d'exemple, celle, d'une part, des anions organiques (alcanesulfonates et acides carboxyliques possédant jusqu'à 18 carbones) et des anions inorganiques, et d'autre part des cations inorganiques. L'analyse de divers solutés neutres en MEKC s'est aussi avérée possible puisque la fluorescence émise par la fluorescéine est différente en pseudo-phase micellaire qu'en phase aqueuse. Notre approche analytique visant à concilier résolution et sensibilité de détection, il a été nécessaire d'étudier l'impact, sur ces deux grandeurs fondamentales, de la concentration en fluorescéine dans l'électrolyte de séparation, de la force ionique, du pH ainsi que de l'ajout, dans cet électrolyte, de cosolvant organique ou encore de tensioactifs anioniques, cationiques voire neutres. La sensibilité obtenue (seuils de détection généralement de l'ordre de quelques dizaines de ppb) ainsi que l'aspect quantitatif et qualitatif s'avèrent des plus satisfaisants et ouvrent des perspectives intéressantes si l'on considère l'accès à une détection à la fois sensible et universelle tout en tirant profit de la très haute performance de l'électrophorèse capillaire.
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caprini, claudia. "The development of new pseudostationary phases for capillary electrophoresis and the study of their mechanism of separation by chemometric techniques and magnetic resonance". Doctoral thesis, 2018. http://hdl.handle.net/2158/1118193.

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Huang, Yi-Jin y 黃怡津. "Functionalized carbon nanotubes as pseudostationary phase for capillary electrophoretic separation of NSAIDs". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/17842450724629421636.

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碩士
國立臺灣大學
化學研究所
96
A functionalized multiwalled carbon nanotubes (c-MWNTs) as a pseudostationary phase for the capillary eletrophoretic separation of non-steroidal anti-inflammatory drugs (NSAIDs) was described. In order to increase hydrophilicity of the multiwalled carbon nanotubes (MWNTs) in an aqueous electrolyte, a sonochemical process was used to treat MWNTs in concentrated nitric/sulfuric acid mixture. Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and electron spectroscopy for chemical analysis system (ESCA) were used for the characterization of the oxidized MWNTs. The c-MWNTs afforded sieving mechanism, π-π interaction, hydrophobic interaction, hydrogen bond, and electrostatic interaction to separate NSAIDs, providing a different separation mode from sodium dodecyl sulfate (SDS) micelles. The effect of important factors such as pH and concentration of running buffer, separation voltage, organic modifiers and injection temperature were investigated to acquire the optimum conditions. The optimum experimental conditions for the separation of a drug mixture, which consisted of indoprofen, ketoprofen, suprofen, naproxen, flurbiprofen and fenoprofen were using a mixture of borate buffer (75 mM, pH 10)-methanol (95:5, v/v) containing 0.02 mg/ml c-MWNTs as background electro- lyte by low injection temperature and an applied voltage of +12 kV with UV detection at 214 nm. The separation of these drugs could be achieved with an average plat number of 8.6×104 m-1. Finally, the procedure was applied to analyze NSAIDs spiked in urine sample with satisfactory results.
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Capítulos de libros sobre el tema "Pseudostationary phases"

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Tripodi, Valeria y Silvia Lucangioli. "Microemulsions as Pseudostationary Phases in Electrokinetic Chromatography". En Microemulsions. CRC Press, 2008. http://dx.doi.org/10.1201/9781420089608.ch19.

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Actas de conferencias sobre el tema "Pseudostationary phases"

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Patonay, Gabor, Maged M. Henary, Walid Abdelwahab y Gala Chapman. "Copolymerized and bonded silica nanoparticles as labels and pseudostationary phase in bioanalytical applications (Conference Presentation)". En Reporters, Markers, Dyes, Nanoparticles, and Molecular Probes for Biomedical Applications IX, editado por Samuel Achilefu y Ramesh Raghavachari. SPIE, 2017. http://dx.doi.org/10.1117/12.2256542.

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