Sökning: "quantitative"

Visar resultat 1 - 5 av 3406 avhandlingar innehållade ordet quantitative.

  1. 1. Quantitative Bioanalysis Liquid separations coupled to targeted mass spectrometric measurements of bioactive compounds

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Björn Arvidsson; Uppsala universitet.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Analytical chemistry; Method development; Enhanced microdialysis; Column switching; Liquid chromatography; Capillary electrophoresis; Electrospray ionization; Mass spectrometry; Triple quadrupole; Time-of-flight; Quantitation; Validation; Analytisk kemi;

    Sammanfattning : Performing quantitative analysis of targeted bioactive compounds in biological samples, such as blood plasma, cerebrospinal fluid or extracts from pig liver, put high demands on the ruggedness of the method acquiring the results. In addition to the complexity of the sample matrix, the bioactive compounds targeted for analysis usually have low levels of natural abundance, further increasing the demand on the analytical method sensitivity. LÄS MER

  2. 2. Quantitative SPECT : studies of some factors influencing quantitation accuracy in single photon emission computed tomography

    Detta är en avhandling från Stockholm : Univ

    Författare :Bertil Axelsson; Stockholms universitet.; [1987]
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  3. 3. Quantitative Surface Enhanced Raman Spectroscopy

    Detta är en avhandling från Stockholm : Univ

    Författare :Anders Lorén; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; gold colloids; internal standard; surface enhanced Raman spectroscopy; SERS; PLS; PCA; SAM; quantitative;

    Sammanfattning : Surface enhanced Raman spectroscopy (SERS) is a very attractive technique for detection of various organic and inorganic molecules due to its sensitivity and selectivity. The surface enhancement is achieved when the molecules of interest are on or in the vicinity of a metal surface, usually gold and silver. LÄS MER

  4. 4. Quantitative imaging with PET performance and applications of 76Br, 52Fe, 110mIn and 134La

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Mark Lubberink; Uppsala universitet.; [2001]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Oncology; PET; Positron Emission Tomography; Quantitative Imaging; bromine; iron; indium; lanthanum; Onkologi; MEDICINE Surgery Oncology; MEDICIN Kirurgi Onkologi; Oncology; onkologi;

    Sammanfattning : The use of positron emission tomography (PET) has so far mainly been limited to a few nuclides with short half-lives such as 11C and 18F. Certain applications require nuclides with longer half-lives, such as 76Br and 52Fe. LÄS MER

  5. 5. Quantitative image analysis a focus on automated characterization of structures in optical microscopy of iron ore pellets

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Frida Nellros; Luleå tekniska universitet.; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; Signal Processing;

    Sammanfattning : Sintering occurs in many types of material such as iron, ceramics and snow, typically during thermal treatment, and aects the material properties, particularly the strength, by the bonding of particles into a coherent structure. In order to improve the mechanical strength in magnetite iron ore pellets it is important to be able to characterize and quantitatively measure the degree of sintering and features that impact the process of sintering. LÄS MER