Sökning: "Liquid Chromatography Tandem Mass Spectrometry"

Visar resultat 21 - 25 av 75 avhandlingar innehållade orden Liquid Chromatography Tandem Mass Spectrometry.

  1. 21. New Techniques for Sample Preparation in Analytical Chemistry : Microextraction in Packed Syringe (MEPS) and Methacrylate Based Monolithic Pipette Tips

    Författare :Zeki Altun; Lars G Blomberg; Stig Pedersen-Bjergaard; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Liquid Chromatography Tandem Mass Spectrometry; Local Anaesthetics; Microextraction in Packed Syringe; Monoliths; Pipette Tips; Sample Preparation; Analytical chemistry; Analytisk kemi; Kemi; Chemistry;

    Sammanfattning : Sample preparation is often a bottleneck in systems for chemical analysis. The aim of this work was to investigate and develop new techniques to address some of the shortcomings of current sample preparation methods. LÄS MER

  3. 22. Protein adducts of hexahydrophthalic anhydride- chemical structures and biomarkers

    Författare :Monica Kåredal; Avdelningen för arbets- och miljömedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; arbetsmiljömedicin; Yrkesmedicin; industrial medicine; Occupational health; nasal lavage; mass spectrometry; biomarker; human serum albumin; hemoglobin; Hexahydrophthalic anhydride; adducts;

    Sammanfattning : Organic acid anhydrides (OAAs) are low molecular weight chemicals used in the industry for manufacturing of plastics such as epoxy resins. Exposure to these chemicals may lead to symptoms from the eyes and the respiratory tract in form of conjunctivitis, rhinitis and asthma. LÄS MER

  4. 23. Multiplexed absolute quantification of blood plasma proteins using targeted proteomics

    Författare :David Kotol; Mathias Uhlén; Edfors Fredrik; Roman Zubarev; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mass spectrometry; targeted proteomics; stable isotope standards; recombinant protein standards; absolute quantification; blood plasma; multiplex analysis; plasma profiling; Biotechnology; Bioteknologi;

    Sammanfattning : Proteins are the molecular building blocks of all living organisms. They are the functioning actors in metabolism and communication, and they give specific architecture and purpose to all tissues. Their abundance is dynamic and can be interpreted and associated to different physiological states or diseases. LÄS MER

  5. 24. Biomarkers of exposure to pesticides in humans

    Författare :Eva Ekman; Avdelningen för arbets- och miljömedicin; []
    Nyckelord :Biomarker; Mass Spectrometry; Pharmacokinetics; Exposure assessment; Peticides; Pregnant Women; Biomonitoring; Urine; LC-MS MS; Biomarker; Mass Spectrometry; Pharmacokinetics; Exposure assessment; Peticides; Pregnant Women; Biomonitoring; Urine; LC-MS MS;

    Sammanfattning : Almost every human is exposed to pesticides, in work environments, by domestic use and via diet, drinking water and personal products. Current research expresses concern that low dose exposure over time can lead to adverse health effects. LÄS MER

  7. 25. Nano-electrospray mass spectrometry for the analysis of neurosteroids and related molecules

    Författare :Suya Liu; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Neurosteroids are steroids synthesised in the central and peripheral nervous systems. Known neurosteroids include pregnenolone, dehydroepiandrosterone (DHEA), progesterone and its reduced metabolites. LÄS MER