Search for dissertations about: "Limit of quantification"

Showing result 1 - 5 of 62 swedish dissertations containing the words Limit of quantification.

  2. 1. Development of Ultra-fast Biosensors for Detection of Non-electroactive Neurotransmitters

    Author : Yuanmo Wang; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; artificial cell; quantification; stability; deformation; dynamic light scattering; adsorption; amperometry; nanoparticle tracking analysis; enzyme monolayer; glucose oxidase; exocytosis; choline oxidase; acetylcholine; enzymatic activity; acetylcholine esterase; gold nanoparticles; Biosensor;

    Abstract : During neuronal communication neurotransmitters are released through the process exocytosis that occurs on the time scale of sub-milliseconds to milliseconds. Neuronal activity by neurotransmitters that are non-electroactive cannot easily be monitored due to limitations in the temporal resolutions of the sensor probes for these analytes. READ MORE

  4. 2. Analysis of ginesenosides

    Author : Jian-fang Cui; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : New analytical methods were developed in order to evaluate commercial ginseng preparations and to allow studies on urinary excretion of ginsenosides in humans after consumption of ginseng preparations. An optimized alkaline procedure was developed for cleavage of the glycosidic bonds that was clearly superior to previously reported hydrolysis procedures of ginsenosides because of (a) completeness of the reaction and (b) absence of the artifacts found in acid hydrolysis. READ MORE

  5. 3. Aspects of probabalistic serviceability limit state design of dry deep mixing

    Author : Niclas Bergman; Stefan Larsson; Tim Länsivaara; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Byggvetenskap; Civil and Architectural Engineering;

    Abstract : An expanding population and increased need for infrastructure increasingly necessitate construction on surfaces with poor soil conditions. To facilitate the construction of buildings, roads and railroads in areas with poor soil conditions, these areas are often improved by means of foundation engineering. READ MORE

  6. 4. Re-Os dating of molybdenite : new anlytical approaches using ICP-MS

    Author : Dmitry Malinovskiy; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

    Abstract : In recent years, there has been a surge of interest in the direct dating of ore deposits using Re-Os geochronometer for the ore minerals themselves. Molybdenite has been or particular interest because it is a common ore mineral and is suitable for analysis by the Re-Os method due to relatively high concentration of both Re and Os. READ MORE

  7. 5. Preclinical studies of roscovitine

    Author : Marina Vita; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Roscovitine; Metabolism; Pharmacokinetics; LC-MS; Cdk-inhibitor; Toxicity;

    Abstract : Cyclin-dependent kinases (Cdks) are key enzymes implicated in vital functions of the cell including regulation of the cell cycle, apoptosis, transcription and differentiation. Abnormal regulation of these molecules has been correlated to several diseases, such as cancer, viral infections, neural disorders and kidney inflammations. READ MORE