Sökning: "automated synthesis"

Visar resultat 1 - 5 av 36 avhandlingar innehållade orden automated synthesis.

  1. 1. Developments in the Field of Aza-Diels-Alder Reactions, Catalytic Michael Additions and Automated Synthesis

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Stefan Modin; Uppsala universitet.; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Asymmetric synthesis; aza-Diels-Alder; Michael addition; Transfer hydrogenation; automated synthesis; Catalysis; Organisk kemi; NATURAL SCIENCES Chemistry Organic chemistry; NATURVETENSKAP Kemi Organisk kemi;

    Sammanfattning : The development of new aza-bicyclic structures with potential applications as ligands synthesised via an aza-Diels-Alder cycloaddition has been studied. The studies are concerning the i) development of large scale aza-Diels-Alder reaction, ii) development of a fast and simple route to bicyclic diamine ligands, iii) development of new aza-Diels-Alder adducts from different dienes, iv) development and application of bicyclic N,P ligands for catalytic Michael additions and v) development of robotized asymmetric transfer hydrogenation reactions. LÄS MER

  2. 2. Novel Methods for Synthesis of High Quality Oligonucleotides

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Andrey Semenyuk; Uppsala universitet.; [2006]
    Nyckelord :Organic chemistry; oligonucleotide; solid-phase synthesis; RNA synthesis; phosphoramidite; abasic sites; depurination; 2 -O-DTM; protecting group; cartridge; conjugate; dithiomethyl linker; base-stable linker; oligonucleotide purification; nucleoside; Organisk kemi;

    Sammanfattning : The first part of the work describes a procedure of oligonucleotide purification using a reversed-phase cartridge. The developed method employs a very efficient yet mild oligonucleotide detritylation on the cartridge support allowing fast purification of oligonucleotides regardless of their 5´-modification. LÄS MER

  3. 3. Surface Sampling and Automated Liquid Membrane Extraction of Fungicides

    Detta är en avhandling från Department of Analytical Chemistry, Lund University

    Författare :Margareta Sandahl; Lunds universitet.; Lund University.; [1999]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; natural water analysis; microporous membrane liquid-liquid extraction MMLLE ; supported liquid membrane SLM extraction; Dislodgeable fungicide residues; surface sampling; automated sample preparation for HPLC; Analytical chemistry; Analytisk kemi;

    Sammanfattning : A number of approaches for fungicide determination are presented. A surface sampling technique is utilised for the determination of fungicide foliar residues on greenhouse surfaces, mainly leaves. The procedure is based on solvation of the fungicides on the leaf surface with ethanol and HPLC analysis. LÄS MER

  4. 4. Sustainable Design and Control of Automated Material Handling Systems

    Detta är en avhandling från Department of Analytical Chemistry, Lund University

    Författare :Maziar Mashaei; [2012]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mixed integer leaner model.; CPN tool; Universal design framework; Sustainable production philosophy; Conceptual and detailed design phases; Automated material handling system; Pallet system; Synthesis and evaluation methods;

    Sammanfattning : An automated material handling system is a collection of electro mechanical components, electronics, and computer-based devices that act together to maintain flow of parts and materials in a modern production environment. Material flow is a significant factor in the design of manufacturing plants. LÄS MER

  5. 5. Imaging of Enzymes in the Steroid Biosynthetic Pathway Synthesis of 18F-Labelled Tracers

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Maria Erlandsson; Uppsala universitet.; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Chemistry Organic chemistry; NATURVETENSKAP Kemi Organisk kemi; Organisk kemi; Organic Chemistry;

    Sammanfattning : This thesis deals with the synthesis and development of 18F-labelled alkyl etomidate and vorozole analogues, and their use as positron emission tomography (PET) tracers for the imaging of the steroid enzymes 11β-hydroxylase and aromatase. Two synthetic 18F-labelling approaches to the etomidate and vorozole analogues were developed, and the analogues were evaluated in some biological assays. LÄS MER