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Visar resultat 1 - 5 av 28 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Development and improvement of methods for characterization of HPLC stationary phases

   Författare :Torgny Undin; Torgny Fornstedt; Jörgen Samuelsson; Anders Törncrona; Johan Ekeroth; Douglas Westerlund; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Adsorption isotherms; Elution by characteristic points; Inflection points; Single component adsorption; Elution by characteristic points method; Slope data; ECP-slope method; Adsorption; Adsorption energy distribution; Adsorption isotherms; AED; Characterization of adsorption processes; Chromatographic analysis; Chromatography; Hydrophobic-subtraction method HSM ; Hydrophobicity; Linear methods; Linear Models; Liquid chromatography; metoprolol; Non-linear methods; Nonlinear methods; phenol; priority journal; propranolol; Retention mechanism; reversed phase liquid chromatography; Solvation; Subtraction method; Thermodynamics; Chemistry with specialization in Surface Biotechnology; Kemi med inriktning mot ytbioteknik;

   Sammanfattning : High Performance Liquid Chromatography (HPLC) is a widely used tech-nique both for detecting and purifying substances in academy and in the industry. In order to facilitate the use of, and knowledge in HPLC, character-ization of stationary phases is of utmost importance. LÄS MER

3. 2. Nanostructured Ceramics - Synthesis and Understanding

   Författare :Farnaz Ghajeri; Wei Xia; Freddy Kleitz; Uppsala universitet; []
   Nyckelord :Material Science; Nanoporouse Silica; Calcium Phosphate; Synthesis; Characterization; Adsorption; Teknisk fysik med inriktning mot materialvetenskap; Engineering Science with specialization in Materials Science;

   Sammanfattning : During the last years, nanostructured ceramics have been favored for use in the industry due to their beneficial properties. For example, calcium phosphate ceramics with their biocompatible and bioactive characteristics are beneficial in biomedicine. LÄS MER

4. 3. Chitosan biopolymer as an adsorbent for drinking water treatment : Investigation on Arsenic and Uranium

   Författare :Md Annaduzzaman; Prosun Bhattacharya; Mustafa Ersoz; Joydeep Dutta; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chitosan Biopolymer; Characterization; Biodegradable; Arsenic V ; Uranium VI ; Adsorption; Isotherm; Kinetic model; Chitosan; Biopolymer; Karakterisering; Bionedbrytbar; arsenik V ; uran VI ; Adsorption; Isoterm; Kinetisk modell; Land and Water Resources Engineering; Mark- och vattenteknik;

   Sammanfattning : In many countries over the world (including Sweden), metal toxicity in freshwater resources causes a severe drinking water quality problem and poses a threat to the environment and human health. Among the different toxic metals in the water resources of Sweden, arsenic and uranium are the biggest threats to health. LÄS MER

5. 4. Atomistic simulations of structural and dynamical properties of liquids under geometric constraints

   Författare :Lorenzo Agosta; Alexander Lyubartsev; Marialore Sulpizi; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; liquid; contraint; TiO2; surfaces; bio-inorganic; molecular dynamic; ab-initio; tight-binding; DFT; metadynamic; free energy; nanoparticles; water; amino acids; adsorption; mesophases; hexatic; smectic; triply periodic network; Fddd; fysikalisk kemi; Physical Chemistry;

   Sammanfattning : The statistical-mechanical description of liquids represents a formidable problem in physic due to the absence of the analytical theory of the liquid state. Atomistic simulations represent a unique source of information in this respect and can be implemented in order address macroscopically measurable liquid properties, including its structure and dynamics, based on the information of the interactions between its constituent molecules. LÄS MER

7. 5. Sustainable porous organic materials : Synthesis, sorption properties and characterization

   Författare :Fredrik Björnerbäck; Niklas Hedin; Knut Irgum; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; porous materials; sorbents; microporous; CO2 capture and separation; gas adsorption; activated carbon; humins; hypercrosslinked polymers; sustainable; Materials Chemistry; materialkemi;

   Sammanfattning : The resources available to us humans, including metals, minerals, biomass, air, water, and anything else on the planet, are being used at an increasing rate. This anthropogenic use of resources both depletes the resources and has negative impacts on other resources, e.g. the biosphere. LÄS MER