Search for dissertations about: "sample work-up"

Showing result 1 - 5 of 7 swedish dissertations containing the words sample work-up.

  2. 1. New Techniques for Continuous Chemical Analysis in the Pulp&Paper Industry

    Author : Matthew Rice; KTH; []
    Keywords : Chemical monitoring; continuous flow extraction; cross-flow filtration; dissolved and colloidal components; fuzzy-logic control; on-line system; pitch analysis; polyelectrolyte titration; process control; sample work-up; titrimetric analysis;

    Abstract : This thesis presents some new techniques that were developedfor continuous chemical analysis of a paper furnish. First, ageneral background is presented, covering topics from theorigins of papermaking to present day. READ MORE

  4. 2. Capillary electroseparations with mass spectrometric detection Nanoparticle-based continuous full filling and applications for complex sample matrices

    Author : Peter Viberg; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Analytisk kemi; Analytical chemistry; phthalates; continuous full filling; heterocyclic aromatic amines; pseudostationary phase; capillary electrophoresis; electrokinetic chromatography; capillary electrochromatography; nanoelectrospray; mass spectrometry;

    Abstract : One of the major challenges in analytical chemistry is to find techniques and methods for determinations of low abundance compounds in complex sample matrices. This thesis describes the development of new miniaturised analytical techniques comprising capillary electroseparation combined with mass spectrometric detection. READ MORE

  5. 3. Analytical Supercritical Fluid Extraction of Lipid Containing Samples

    Author : Mattias Järemo; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; SFC; extraction cell; liquid samples; fat retainers; lipids; SFE; carbon dioxide; Analytical chemistry; Analytisk kemi;

    Abstract : Traditionally, sample work-up has been associated with different kinds of liquid extraction techniques involving a large consumption of hazardous solvents. There are today regulations that aims at replacement of dangerous chemicals which has created a need for new extraction techniques. READ MORE

  6. 4. Current and possible future diagnostic methods for upper tract urothelial carcinoma

    Author : Alexandra Grahn; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Background: Urothelial carcinoma is a type of cancer originating from the mucus membrane of the urinary tract. It most commonly occurs in the bladder but may also occur in the upper urinary tract, then called UTUC. UTUC is mainly detected in sexagenarians and older individuals. READ MORE

  7. 5. Search for reliable diagnostic markers for Alzheimer’s disease

    Author : Niels Andreasen; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Alzheimer´s disease; Mild cognitive impairment; Biochemical markers; Cerebrospinal fluid; Diagnosis; Progression; Tau-protein; Beta-amyloid; Aß42; ApoE; Sensitivity; Specificity;

    Abstract : The diagnosis of Alzheimer’s disease (AD) is rather difficult not at least in the earlier stages of the disease. The diagnostic accuracy has been reported to be around 65-90%. These figures however, come from academic centers with a special interest in the disease and are based on patients followed for several years. READ MORE