Sökning: "compound separation"

Visar resultat 16 - 20 av 22 uppsatser innehållade orden compound separation.

  1. 16. Isolation and synthesis of curcumin

    Kandidat-uppsats, Organisk Kemi; Tekniska högskolan

    Författare :Susanna Zetterström; [2012]
    Nyckelord :Curcumin;

    Sammanfattning : The aim of this thesis was to evaluate pre-existing methods for isolation and synthesis of curcumin. Two different isolation methods were used, where only the extraction step differs from each other. To obtain pure curcumin, column chromatography was needed to separate the compound from its analogues. LÄS MER

  3. 17. Synthesis of Photoactive Metal-Organic Frameworks

    Kandidat-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Van Nhien Tommy Jun Dam; [2012]
    Nyckelord :Oorganisk kemi; Chemistry;

    Sammanfattning : Populärvetenskaplig sammanfattning Metal-organic frameworks (MOFs) är kristaller med små hållrum eller porer som man sedan kan sätta dit en dörr där den kan öppnas eller stängas. Denna dörren är en organisk förening som kan bli krökt när man lyser med en speciel lampa. När kristallen utsätts för t.ex. LÄS MER

  4. 18. Method development and applications - hollow fiber SLM extraction of mono and dicarboxylic acids

    Master-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Atif Hussain; [2011]
    Nyckelord :UAE samples; BSTFA; Derivatization; analytisk kemi; HF-LPME; TOPO; DHE; TMS; Chemistry;

    Sammanfattning : A highly sensitive (LOD= 0.04-0.4 ng/ml) method was developed for the detection and quantification of monocarboxylic and dicarboxylic acids (C3 -C10) by GC-MS. These compounds exist in trace amount as essential components of secondary organic aerosols i. LÄS MER

  5. 19. Feasibility of lignocellulose as feedstock for biological production of super absorbent polymers

    Master-uppsats, Teknisk biologi; Linköpings universitet

    Författare :Christoffer Nystrand; [2010]
    Nyckelord :3-HP; 3-hydroxipropionic acid; SAP; superabsorbent polymer; lignocellulose;

    Sammanfattning : Super absorbent polymers (SAP) can absorb liquid many times its own weight and is used in diapers and incontinence pads. The most common type of SAP is cross-linked polyacrylic acid. The production of acrylic acid uses crude oil as starting material. LÄS MER

  7. 20. Enantioselektiv HPLC-analys med kirala stationärfaser bestående av makrocykliska glykopeptider och polysackarider

    Kandidat-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Caroline Bergman; [2010]
    Nyckelord :Enantioselektiv; HPLC-analys; kirala stationära faser; makrocykliska glykopeptider; polysackarider;

    Sammanfattning : The purpose of this study was to evaluate enantioselective analytical methods by separation of the enantiomers of four drugs (citalopram, zopiclone, tramadol and methylphenidate) and their metabolites. The analyses were performed with HPLC-UV with columns whose stationary phases were based on macrocyclic glycopeptides (Chirobiotic V, V2 and T) and polysaccharides (Lux Cellulose-1, Cellulose-2 and Amylose-2). LÄS MER