Search for dissertations about: "sorbent"

Showing result 16 - 20 of 44 swedish dissertations containing the word sorbent.

  2. 16. Development of LC-MS/MS Methods for the Analysis of Chiral and Achiral Pharmaceuticals and Metabolites in Aqueous Environmental Matrices

    Author : Victoria K.H. Barclay; Curt Pettersson; Monika Johansson; Niklas Tyrefors; Mohamed Abdel-Rehim; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Environmental water matrices; chiral separation; LC-MS MS; trace analysis; method development; active pharmaceutical ingredients; metabolites; Analytical Pharmaceutical Chemistry; Analytisk farmaceutisk kemi;

    Abstract : This thesis describes the development of liquid chromatography tandem mass spectrometry (LC-MS/MS) methods for the trace analysis of active pharmaceutical ingredients (APIs) and their metabolites in aqueous environmental matrices. The research was focused on the development of chiral LC-MS/MS methods for the analysis of fluoxetine and metoprolol, as well as their chiral metabolites in environmental water samples. READ MORE

  4. 17. Outline of Titanium (IV) based H2PO4 Ion-exchangers: Kinetics and Sorption models

    Author : Mylene Trublet; Ingmar Persson; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry of Interfaces; Gränsytors kemi;

    Abstract : Decontamination of industrially polluted waters has been enclosed in REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) since 2007, when it entered into force in the European Union, which emphasized the need to search for more effective sorbents. Many studies on inorganic ion-exchangers have been carried out due to the scientific interest towards their high mechanical and thermal stabilities, high resistance to oxidation and high sorption capacity regarding transition and radioactive metal ions. READ MORE

  5. 18. Improved Techniques for Sampling and Sample Introduction in Gas Chromatography

    Author : Jonas Bonn; Johan Roeraade; Åsa Emmer; Mikael Hedenqvist; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Gaskromatografi; Provupparbetning; Provintroduktion; Analytical chemistry; Analytisk kemi;

    Abstract : Sampling and sample introduction are two key steps in quantitative gas chromatography. In this thesis, a development of a previously described sampling technique as well as a novel concept for sample introduction in gas chromatography are presented. The thesis is based on two papers. READ MORE

  6. 19. CO2 Capture through Integration of Aqueous and Immobilized Deep Eutectic Solvents

    Author : Sahar Foorginezhad; Xiaoyan Ji; Hailong Li; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CO2 capture; Ionic liquid; Deep eutectic solvent; Immobilization; Slurry.; Energiteknik; Energy Engineering;

    Abstract : The growing global concern over rising CO2 emissions and its significant impact on climate change highlight the urgent need for efficient CO2 capture technologies. Among the array of techniques employed for this purpose, chemical absorption stands out, characterized by high capture capacity, promising efficiency, and versatile applicability. READ MORE

  7. 20. Application of new technology : MEPS and LC-MS/MS for determination of therapeutic drugs

    Author : Rana Said; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Bioanalysis most often requires an extraction procedure to isolate the target compounds from a complex matrix. The aim of this work was to evaluate microextraction in packed syringe (MEPS) performance as a sample preparation technique by developing new analytical methods for different categories of compounds utilizing MEPS in combination with LC-MS/MS. READ MORE