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Determination of organic ions and pharmaceuticals by flow injection analysis and ion exclusion chromatographyMansour, Fotouh Rashed 19 July 2013 (has links)
No description available.
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Salt solubility measurements in partially disulfonated poly(arylene ether sulfone) for reverse osmosis water purification applicationsPassaniti, Linda Kimberly 02 November 2010 (has links)
Partially disulfonated poly(arylene ether sulfone) (BPS) membranes have shown great promise as robust, chlorine tolerant alternatives to the current polyamide materials as reverse osmosis desalination membranes for water purification. The random copolymers are synthesized by direct polymerization of a disulfonated monomer (3,3’-disulfonato-4,4’-dichlorodiphenyl sulfone (SDCDPS)) and other monomers (4,4’-dichlorodiphenyl sulfone (DCDPS) and 4,4’-biphenol (BP)). The sulfonation of the materials adds necessary hydrophilic character and adjusting the percent sulfonation of the material changes the water and salt uptake of the material. Additionally, sulfonation causes the membranes to be charged, making them ion exchangers in which anions are partially excluded from the membrane, thus affecting the partitioning of salt in the membrane. The amount of sodium chloride present in the membrane after equilibration with external soaking solutions of varying concentrations of sodium chloride was measured by measuring the amount of individual ions, i.e., the sodium cation and chloride anion, separately. One area in which this work is unique is that it sought to measure the concentrations of the ions independently of one another. The analysis of sodium and chloride has shown the concentration of sodium in the membrane to be significantly greater than that of chloride, where the uptake of chloride is the limiting factor in the uptake of sodium chloride. The trends in the concentrations as well as in the partition coefficients of the ions are consistent with Donnan Exclusion. / text
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Use of Surfactant Modifiers for High-Performance Liquid Chromatography of Aliphatic and Aromatic Acids and Capillary Electrophoresis of GlycosaminoglycansFasciano, Jennifer Marie 23 November 2015 (has links)
No description available.
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On the sorption and diffusion of radionuclides in bentonite clayMolera Marimon, Mireia January 2002 (has links)
No description available.
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On the sorption and diffusion of radionuclides in bentonite clayMolera Marimon, Mireia January 2002 (has links)
No description available.
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Reversed-phase and surfactant modified reversed-phase high and ultra-high performance liquid chromatography of phenolic and aliphatic carboxylic acidsfadhil ali, abd al-karim alkarim 25 November 2019 (has links)
No description available.
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