Sökning: "dissolution kinetics"

Visar resultat 11 - 15 av 44 avhandlingar innehållade orden dissolution kinetics.

  1. 11. Kinetics and mechanisms of alkali feldspar dissolution at low temperatures

    Författare :Peter Schweda; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  3. 12. Drug Dissolution under Physiologically Relevant Conditions In Vitro and In Vivo

    Författare :Eva Persson; Hans Lennernäs; Bertil Abrahamsson; Peter Langguth; Uppsala universitet; []
    Nyckelord :Biopharmacy; solubility; drug dissolution; food effects; poorly soluble drugs; P-gp inhibition; drug absorption; pemeability; bile acids; phospholipids; human intestinal fluid; simulated intestinal fluid; neutral lipids; solid phase extraction; HPLC; Efflux; Biofarmaci;

    Sammanfattning : The general aim of the present project was to increase the understanding of the in vivo dissolution of poorly soluble drugs and thereby improve possibility to predict in vivo solubility from substance properties. Increased understanding of the in vivo limitations of drug solubility could potentially also generate ideas for improved formulation principles for poorly soluble compounds and more relevant in vitro dissolution test methods used in formulation development. LÄS MER

  4. 13. Kinetics and mechanism of calcite dissolution in aqueous solutions at low temperatures

    Författare :E. Lennart Sjöberg; Stockholms universitet; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  5. 14. Mineral dissolution from molecular to field scale

    Författare :Heléne Strandh; William H. Casey; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Mineralogy; Petrology and Geochemistry; mineralogi; petrologi och geokemi;

    Sammanfattning : Mineral reactivity contributes to the global biogeochemical cycling of elements. CO2is consumed during the chemical weathering of many silicates and during formation of carbonates in the oceans. LÄS MER

  7. 15. Dissolution Kinetics and Alteration Products of Micas and Epidote in Acidic Solutions at Room Temperature

    Författare :Birgitta Estmark Kalinowski; Per Aagaard; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Geovetenskap; Mineralogy; Petrology and Geochemistry; mineralogi; petrologi och geokemi;

    Sammanfattning : The reaction kinetics of the weathering of several phyllosilicates and one sorosilicate were stud ied experimentally. The alteration products were characterised by various methods in clud ing XRD, HRTEM, SEM, FTIR, NMR and Mössbauer spectroscopy. LÄS MER