Sökning: "capillary induced phase separation"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden capillary induced phase separation.

1. 1. Nanoparticle-based Capillary Electrochromatography - Separation of Small Molecules and Proteins

   Författare :Christian Nilsson; Tillämpad biokemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nanoparticles; Capillary Electrochromatography; Green Fluorescent protein; Pseudostationary Phase; Capillary Electrophoresis;

   Sammanfattning : The use of nanoparticle-based pseudostationary phases (PSPs) in capillary electrochromatography (CEC) for separation of small molecules and proteins is demonstrated. A continuous full filling approach is used where the nanoparticles are suspended in the electrolyte. LÄS MER

3. 2. Polymer-Mediated Interactions and Phase Behaviour of Polymer-Particle Dispersions

   Författare :Sara Haddadi; Beräkningskemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Simulations; Experiments; Particles; Phase transition; Stability; capillary induced phase separation; Polymer solutions; phase diagram; surface effects; Bulk properties;

   Sammanfattning : Interactions between colloidal particles can be modelled by particles grafted with polymers. In this work, structural and physical properties of colloids are investigated under variation of parameters such as pH, ionic strength, and temperature, where aggregation and cluster formation can be monitored in aqueous solution. LÄS MER

4. 3. Particle-Induced Phase Separation in Aqueous Solutions containing Colloidal Particles and Adsorbing Polymers

   Författare :Martin Olsson; Fysikalisk kemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polymer technology; biopolymers; Polymerteknik; theoretical calculations; particle-induced phase separation; phase behaviour; surfactant; colloidal particles; adsorbing polymer;

   Sammanfattning : The influence of added colloidal particles on the phase behaviour of a polymer solution was investigated. Binary, quasi-binary and mixed polymer solutions were used in the study, where at least one of the polymers had an affinity for the surfaces of the colloidal particles. LÄS MER

5. 4. Sensitivity and selectivity studies in capillary electrophoresis

   Författare :Maria Petersson; Centrum för analys och syntes; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; peptides; dansyl amino acids; imaging detection; cyclodextrins; enantiomer separation; acoustic levitation; solid-phase extraction; preconcentration; capillary electrophoresis; micellar electrokinetic chromatography; drugs; Analytical chemistry; Analytisk kemi;

   Sammanfattning : Capillary electrophoresis is characterised by high separation efficiency, applicability to a wide range of compounds, small sample and solvent consumption and simple instrumentation. To improve sensitivity using on-line absorbance detectors, which are hampered by the short optical path length, sample volumes in the microlitre range were concentrated to nanolitre volumes either off-line or on-line. LÄS MER

7. 5. Associative Multicomponent Polymers in Bulk and at Interfaces

   Författare :Fredrik Joabsson; Fysikalisk kemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polymer adsorption; polymer self-diffusion; polymer-surfactant interactions; phase behaviour; ethyl hydroxyethyl cellulose; hydrophobically modified polymers; capillary-induced phase separation; Physical chemistry; Fysikalisk kemi;

   Sammanfattning : The solution and interfacial properties of an associative water-soluble cellulose derivative, ethyl(hydroxyethyl)cellulose (EHEC) have been investigated. Main themes have been to study the effect of hydrophobic modification of the polymer (HM-EHEC) and the interactions with surfactants, both in bulk and at interfaces. LÄS MER