Sökning: "reverse phase liquid chromatography"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden reverse phase liquid chromatography.

  1. 1. Sample Preparation of Organic Compounds in Environmental Analysis using Liquid Membrane Extraction

    Författare :Luke Chimuka; Kemiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; reverse phase liquid chromatography; octanol-water partition coefficients; phenolic compounds; s-triazines; supported-liquid membrane extraction; environmental analysis; UV detection; Analytical chemistry; Analytisk kemi;

    Sammanfattning : This thesis demonstrates the potential of the liquid membrane extraction technique as an alternative method for the analysis of trace ionisable organic compounds in the environment. Liquid membrane based extraction methods for the analysis of s-triazine herbicides and phenolic compounds were developed. LÄS MER

  3. 2. High-performance liquid chromatography for analysis of 32P-postlabeled DNA adducts

    Författare :Magnus Zeisig; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :DNA adducts; 32P-postlabeling; HPLC; method development;

    Sammanfattning : The formation of DNA adducts, i.e. the covalent binding of chemicals and chemical groups to DNA, is believed to be an important step in chemical carciogenesis. DNA adducts are usually formed at very low levels which requires very sensitive methods to analyze them. LÄS MER

  4. 3. Colloidal/Solid Phase Extraction (C/S PE) Methods Based on Hydrogel Nanoparticles, Titanium dioxide microparticles and Empore Membranes Applied to Biological and Environmental Matrices

    Författare :Davide Tamburro; Leopold Ilag; Robin Couch; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biomarkers; nanogels; solid-phase extraction; organophosphate esters; peptides; mass spectrometry; Analytical chemistry; Analytisk kemi; Analytical Chemistry; analytisk kemi;

    Sammanfattning : The aim of the work described in this thesis was to create and develop novel technologies in order to overcome barriers and hurdles that analytical chemistry faces focusing on sample extraction. In paper I dye containing amine groups (e.g. LÄS MER

  5. 4. Molecular mechanisms of Ab amyloid deposition in Alzheimer disease

    Författare :Jan Näslund; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Alzheimer disease amyloid apolipoprotein E fibrils ligands liquid chromatography mass spectrometry protease resistance;

    Sammanfattning : The general aim of this study was to investigate the mechanisms underlying amyloid b-peptide (Ab) amyloid deposition in Alzheimer disease (AD) brain. Primary structure of intact Ab variants in amyloid partially purified from brains of AD patients and non-demented controls was determined. LÄS MER

  7. 5. Characterization of dissolved organic matter : An analytical challenge

    Författare :Claudia Patriarca; Jonas Bergquist; Lars Tranvik; Jeffrey A. Hawkes; Jonathan Martin; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Kemi med inriktning mot analytisk kemi; Chemistry with specialization in Analytical Chemistry;

    Sammanfattning : Dissolved organic matter (DOM) is the prevalent form of organic carbon in most aquatic environments. It is an ultra-complex mixture that plays a crucial role in global carbon cycling. Despite its importance it is still poorly understood due to its extreme heterogeneity and intricacy. LÄS MER