Search for dissertations about: "Ambient Mass Spectrometry"

Showing result 1 - 5 of 27 swedish dissertations containing the words Ambient Mass Spectrometry.

  1. 1. New Materials and Improved Ambient Techniques in Mass Spectrometry

    Author : Nicolò Riboni; Leopold Ilag; Elisa Robotti; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Mass Spectrometry; Solid Phase Microextraction; Ambient Mass Spectrometry; Desorption Electrospray Ionization; Paper Spray Ionization; Cavitands; BTEX; New Psychoactive Substances; Analytical Chemistry; analytisk kemi;

    Abstract : Mass spectrometry (MS) is used in several fields, e.g. biology, environmental monitoring, medicine and forensics due to excellent qualitative and quantitative capabilities. The development of new instrumental setups and ionization sources is crucial to analyze a variety of compounds at trace levels. READ MORE

  2. 2. Applications of nanospray desorption electrospray ionization mass spectrometry : In situ lipid and metabolite analysis from cells to tissue

    Author : Hilde-Marléne Bergman; Ingela Lanekoff; Jonas Bergquist; Martina Marchetti-Deschmann; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Mass spectrometry; mass spectrometry imaging MSI ; nanospray desorption electrospray ionization nano-DESI ; single-cell analysis; neurotransmitter imaging; diabetic nephropathy; pneumatic nebulization; lipidomics; metabolomics; Kemi med inriktning mot analytisk kemi; Chemistry with specialization in Analytical Chemistry;

    Abstract : Ambient mass spectrometry (MS) has proved to be an important addition to the bioanalytical toolbox. These methods perform analyte sampling and ionization under atmospheric pressure, and require very little sample preparation other than the sampling process in front of the machine. READ MORE

  3. 3. Determination of mercury chemical speciation in the presence of low molecular mass thiols and its importance for mercury methylation

    Author : Van Liem-Nguyen; Erik Björn; Ulf Skyllberg; Cynthia Gilmour; Umeå universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Mercury; methylmercury; LMM thiol; mass spectrometry; biogeochemistry; soil; sediment; ICP; WinSGW; modeling; S XANES; ligand exchange; stability constant; boreal wetlands; analytisk kemi; Analytical Chemistry; Environmental Science; miljövetenskap;

    Abstract : Methylmercury (MeHg) is a neurotoxic compound that threatens the well-being of humans and wildlife. It is formed through the methylation of inorganic mercury (HgII) under suboxic/anoxic conditions in soils, sediment and waters. READ MORE

  4. 4. Aerosol chemistry on the single particle level - an experimental study

    Author : Maria Svane; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Aerosol mass spectrometry; surface ionization; alkali; ambient air; biomass combustion;

    Abstract : .... READ MORE

  5. 5. Multiplexed absolute quantification of blood plasma proteins using targeted proteomics

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

    Abstract : 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. READ MORE